Northwest Natural Gas

49.42

-1.1700-2.31%

Post-market: 49.420.00000.00%19:45 EDT

Volume:523.26K

Turnover:25.99M

Market Cap:2.08B

PE:16.37

High:50.89

Open:50.68

Low:49.39

Close:50.59

52wk High:55.99

52wk Low:40.84

Shares:42.08M

Float Shares:41.32M

Volume Ratio:2.58

T/O Rate:1.27%

Dividend:1.97

Dividend Rate:3.98%

EPS(TTM):3.02

EPS(LYR):2.77

ROE:8.35%

ROA:2.84%

PB:1.33

PE(LYR):17.86

Loading ...

Overview Company News Filings

Aug 05, 2026

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Tiger Brokers HK | Online Trading in stocks, bonds & ETFS","description":"Discover Tiger Brokers HK, an online trading platform for stocks&ETFs, options&futures, bonds and crypto. Open an account to enjoy low commission trading today!","keywords":"tiger trading,tiger security,tiger broker hk,tigers co ltd,tiger trade hk,tiger brokers hk,stock broker,securities broker,online brokerage,hong kong broker,hk broker,online stock trading,online trading platform,stock trading platforms,trading application,stock trading,stock trading hong kong,buying stocks in hong kong,tiger brokers","social":{"ogDescription":"Discover Tiger Brokers HK, an online trading platform for stocks&ETFs, options&futures, bonds and crypto. Open an account to enjoy low commission trading today!","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.0a0bd8dc.png","ogUrl":"https://www.gotigerhk.com/stock/NWN/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"HKG","license":"TBHK","edition":"fundamental","symbol":"NWN","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NWN\",,,,,undefined,":{"symbol":"NWN","market":"US","secType":"STK","nameCN":"Northwest Natural Gas","latestPrice":49.42,"timestamp":1787342400000,"preClose":50.59,"halted":0,"volume":523261,"hourTrading":{"tag":"盘后","latestPrice":49.42,"preClose":49.42,"latestTime":"19:45 EDT","volume":129884,"amount":6418875.3633,"timestamp":1787355943690,"change":0,"changeRate":0,"amplitude":0},"delay":0,"changeRate":-0.023127100217434308,"floatShares":41319951,"shares":42080000,"eps":3.018941,"marketStatus":"Market Closed","change":-1.17,"latestTime":"08-21 16:00:00 EDT","open":50.68,"high":50.885,"low":49.39,"amount":25993558.436446,"amplitude":0.029551,"askPrice":0,"askSize":0,"bidPrice":0,"bidSize":0,"shortable":3,"etf":0,"ttmEps":3.018941,"tradingStatus":0,"nextMarketStatus":{"tag":"Pre-Mkt","tradingStatus":1,"beginTime":1787558400000},"marketStatusCode":7,"adr":0,"adrRate":0,"exchange":"NYSE","adjPreClose":50.59,"dividendRate":0.039812,"preHourTrading":{"tag":"盘前","latestPrice":50.59,"preClose":50.59,"latestTime":"07:35 EDT","volume":2,"amount":101.18,"timestamp":1787312113743,"change":0,"changeRate":0,"amplitude":0},"postHourTrading":{"tag":"盘后","latestPrice":49.42,"preClose":49.42,"latestTime":"19:45 EDT","volume":129884,"amount":6418875.3633,"timestamp":1787355943690,"change":0,"changeRate":0,"amplitude":0},"volumeRatio":2.5779324758700537,"impliedVol":0.2601,"impliedVolPercentile":0.8207},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"NWN\",,,,,undefined,":{"symbol":"NWN","floatShares":41319951,"roa":"2.84%","roe":"8.35%","lyrEps":2.76705,"volumeRatio":2.5779324758700537,"shares":42080000,"dividePrice":1.9675,"high":50.885,"amplitude":0.029551,"preClose":50.59,"low":49.39,"week52Low":40.84,"pbRate":"1.33","psRate":"1.61","week52High":55.99,"institutionHeld":0.8152,"latestPrice":49.42,"eps":3.018941,"divideRate":0.039812,"volume":523261,"delay":0,"ttmEps":3.018941,"open":50.68,"prevYearClose":46.74,"prevWeekClose":50.86,"prevMonthClose":48.92,"prevQuarterClose":49.06,"fiveDayClose":50.86,"twentyDayClose":51.68,"sixtyDayClose":50.28,"dividendPayoutRate":0.7076978777357706,"dividendFrequency":"Q","dividendGrowthYears":7,"dividendGrowthRate":0.005121638924455716,"fiveYearAvgDividendRate":0.044274895654694335},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/NWN\",params:#limit:5,,,undefined,":[{"market":"US","date":"2026-08-05","symbol":"NWN","fiscalQuarterEnding":"2026/06","expectedEps":0.03,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1785902400000,"reportTimeType":"pre","actualEps":0.01},{"date":"2026-07-31","symbol":"NWN","amount":0.4925,"announcedDate":"2026-07-09","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-07-31","defaultRemindTime":1785504600000,"name":"西北天然气","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-08-14","payableDate":"2026-07-31","currency":"USD","dateTimestamp":1785470400000,"payDate":"2026-08-14"},{"market":"US","date":"2026-05-06","symbol":"NWN","fiscalQuarterEnding":"2026/03","expectedEps":2.31,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1778040000000,"reportTimeType":"pre","actualEps":2.33},{"date":"2026-04-30","symbol":"NWN","amount":0.4925,"announcedDate":"2026-04-09","type":"dividend","lastAmount":null,"market":"US","newRecordDate":"2026-04-30","defaultRemindTime":1777555800000,"name":"西北天然气","lastCurrency":null,"lastExecuteDate":null,"recordDate":"2026-05-15","payableDate":"2026-04-30","currency":"USD","dateTimestamp":1777521600000,"payDate":"2026-05-15"},{"market":"US","date":"2026-02-27","symbol":"NWN","fiscalQuarterEnding":"2025/12","expectedEps":1.36,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1772168400000,"reportTimeType":"pre","actualEps":1.39}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"NWN\",market:\"US\",,,undefined,":[{"executeDate":"2017-01-27","recordDate":"2017-01-31","paymentDate":"2017-02-15","value":0.47,"currency":"USD"},{"executeDate":"2017-04-26","recordDate":"2017-04-28","paymentDate":"2017-05-15","value":0.47,"currency":"USD"},{"executeDate":"2017-07-27","recordDate":"2017-07-31","paymentDate":"2017-08-15","value":0.47,"currency":"USD"},{"executeDate":"2017-10-30","recordDate":"2017-10-31","paymentDate":"2017-11-15","value":0.4725,"currency":"USD"},{"executeDate":"2018-01-30","recordDate":"2018-01-31","paymentDate":"2018-02-15","value":0.4725,"currency":"USD"}],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"NWN\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.3333,"buy":0.1667,"hold":0.5,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":0.1667,"analysts":6,"updateTime":1785988800000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/NWN\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"NWN","date":"2026-08-21","current":16.369979,"percent":0.418138,"low":12.924701,"twenty":15.519034,"median":17.944223,"eighty":21.106526,"high":25.318886,"avg":18.224451,"sd":2.882426,"marketCap":2129512087},"quantilePoints":[{"date":"2021-08-27","current":16.859963,"twenty":-27.130125,"median":27.946024,"eighty":31.921821,"marketCap":1566762639},{"date":"2021-09-03","current":16.833557,"twenty":-27.130125,"median":27.785456,"eighty":31.918463,"marketCap":1564308822},{"date":"2021-09-10","current":16.249334,"twenty":-27.130125,"median":27.737644,"eighty":31.908739,"marketCap":1510018104},{"date":"2021-09-17","current":15.830145,"twenty":-27.130125,"median":27.645031,"eighty":31.893393,"marketCap":1471063747},{"date":"2021-09-24","current":15.269027,"twenty":-27.130125,"median":27.568189,"eighty":31.863821,"marketCap":1418920119},{"date":"2021-10-01","current":15.295432,"twenty":-27.130125,"median":27.479091,"eighty":31.8333,"marketCap":1421373937},{"date":"2021-10-08","current":15.457167,"twenty":-27.130125,"median":27.274578,"eighty":31.829842,"marketCap":1436403571},{"date":"2021-10-15","current":15.645306,"twenty":-27.130125,"median":27.088255,"eighty":31.829842,"marketCap":1453887022},{"date":"2021-10-22","current":15.440663,"twenty":-27.130125,"median":26.876064,"eighty":31.819452,"marketCap":1434869935},{"date":"2021-10-29","current":14.882845,"twenty":-27.130125,"median":26.726657,"eighty":31.798768,"marketCap":1383033034},{"date":"2021-11-05","current":15.995322,"twenty":-27.093496,"median":26.61594,"eighty":31.790937,"marketCap":1442538115},{"date":"2021-11-12","current":15.698217,"twenty":-27.093496,"median":26.390819,"eighty":31.790937,"marketCap":1415743723},{"date":"2021-11-19","current":15.541474,"twenty":-27.093496,"median":26.294529,"eighty":31.790937,"marketCap":1401607797},{"date":"2021-11-26","current":15.078058,"twenty":-27.093496,"median":26.259011,"eighty":31.785394,"marketCap":1359814624},{"date":"2021-12-03","current":15.166652,"twenty":-27.093496,"median":26.053327,"eighty":31.779352,"marketCap":1367804495},{"date":"2021-12-10","current":16.001482,"twenty":-27.056866,"median":25.979307,"eighty":31.771749,"marketCap":1443093667},{"date":"2021-12-17","current":16.250227,"twenty":-27.056866,"median":25.793715,"eighty":31.751728,"marketCap":1465526767},{"date":"2021-12-23","current":16.451268,"twenty":-27.056866,"median":25.71052,"eighty":31.73624,"marketCap":1483657628},{"date":"2021-12-31","current":16.621642,"twenty":-27.056866,"median":25.641959,"eighty":31.683129,"marketCap":1499022765},{"date":"2022-01-07","current":16.969204,"twenty":-27.020237,"median":25.474235,"eighty":31.674558,"marketCap":1530367645},{"date":"2022-01-14","current":16.976019,"twenty":-27.020237,"median":25.36143,"eighty":31.599765,"marketCap":1530982250},{"date":"2022-01-21","current":16.199115,"twenty":-27.020237,"median":25.279987,"eighty":31.567162,"marketCap":1460917225},{"date":"2022-01-28","current":16.188893,"twenty":-27.020237,"median":25.133319,"eighty":31.517389,"marketCap":1459995317},{"date":"2022-02-04","current":16.00489,"twenty":-27.020237,"median":24.990626,"eighty":31.488234,"marketCap":1443400969},{"date":"2022-02-11","current":15.957185,"twenty":-27.020237,"median":24.802653,"eighty":31.456773,"marketCap":1439098731},{"date":"2022-02-18","current":15.776589,"twenty":-27.020237,"median":24.719603,"eighty":31.41173,"marketCap":1422811686},{"date":"2022-02-25","current":19.414927,"twenty":-27.020237,"median":24.677174,"eighty":31.295484,"marketCap":1527294617},{"date":"2022-03-04","current":22.170951,"twenty":-27.020237,"median":24.538473,"eighty":31.239593,"marketCap":1744100060},{"date":"2022-03-11","current":21.782821,"twenty":-27.020237,"median":24.435083,"eighty":31.218849,"marketCap":1713567405},{"date":"2022-03-18","current":20.863982,"twenty":-27.020237,"median":24.365234,"eighty":31.180496,"marketCap":1641286016},{"date":"2022-03-25","current":21.802624,"twenty":-27.020237,"median":24.293106,"eighty":31.142498,"marketCap":1715125193},{"date":"2022-04-01","current":22.208719,"twenty":-27.020237,"median":24.17432,"eighty":31.086966,"marketCap":1747071072},{"date":"2022-04-08","current":21.994803,"twenty":-27.020237,"median":24.004509,"eighty":31.005466,"marketCap":1730243187},{"date":"2022-04-14","current":21.340221,"twenty":-27.020237,"median":23.924223,"eighty":30.966998,"marketCap":1678749857},{"date":"2022-04-22","current":21.853619,"twenty":-27.020237,"median":23.844022,"eighty":30.902423,"marketCap":1719136782},{"date":"2022-04-29","current":20.827756,"twenty":-27.020237,"median":23.778986,"eighty":30.860357,"marketCap":1638436260},{"date":"2022-05-06","current":22.419847,"twenty":-27.020237,"median":23.682021,"eighty":30.788317,"marketCap":1690187388},{"date":"2022-05-13","current":23.006016,"twenty":-27.020237,"median":23.573845,"eighty":30.788317,"marketCap":1734377533},{"date":"2022-05-20","current":23.52857,"twenty":-27.020237,"median":23.515981,"eighty":30.788317,"marketCap":1773771848},{"date":"2022-05-27","current":24.650926,"twenty":-27.020237,"median":23.515981,"eighty":30.788317,"marketCap":1858383985},{"date":"2022-06-03","current":25.073513,"twenty":-27.020237,"median":23.515981,"eighty":30.788317,"marketCap":1890241996},{"date":"2022-06-10","current":24.578222,"twenty":-27.020237,"median":23.515981,"eighty":30.788317,"marketCap":1852903037},{"date":"2022-06-17","current":23.487675,"twenty":-27.020237,"median":23.368845,"eighty":30.788317,"marketCap":1770688814},{"date":"2022-06-24","current":23.805751,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1794667963},{"date":"2022-07-01","current":24.800876,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1869688441},{"date":"2022-07-08","current":23.655801,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1783363507},{"date":"2022-07-15","current":24.560047,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1851532800},{"date":"2022-07-22","current":23.719416,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1788159337},{"date":"2022-07-29","current":24.387377,"twenty":-27.056866,"median":23.356315,"eighty":30.790629,"marketCap":1838515548},{"date":"2022-08-05","current":23.134535,"twenty":-27.056866,"median":23.340704,"eighty":30.790629,"marketCap":1800491470},{"date":"2022-08-12","current":23.174149,"twenty":-27.056866,"median":23.219582,"eighty":30.790629,"marketCap":1803574503},{"date":"2022-08-19","current":23.602955,"twenty":-27.056866,"median":23.219582,"eighty":30.790629,"marketCap":1836947188},{"date":"2022-08-26","current":22.319019,"twenty":-27.056866,"median":23.134535,"eighty":30.790629,"marketCap":1737022275},{"date":"2022-09-02","current":21.245344,"twenty":-27.056866,"median":23.087807,"eighty":30.761601,"marketCap":1653461372},{"date":"2022-09-09","current":21.773234,"twenty":-27.056866,"median":23.074175,"eighty":30.73313,"marketCap":1694545482},{"date":"2022-09-16","current":21.437711,"twenty":-27.056866,"median":23.03058,"eighty":30.659437,"marketCap":1668432700},{"date":"2022-09-23","current":20.976925,"twenty":-27.056866,"median":22.968452,"eighty":30.633427,"marketCap":1632571146},{"date":"2022-09-30","current":19.406675,"twenty":-27.056866,"median":22.783362,"eighty":30.633427,"marketCap":1510363325},{"date":"2022-10-07","current":19.115888,"twenty":-27.056866,"median":22.729767,"eighty":30.633427,"marketCap":1487732247},{"date":"2022-10-14","current":20.270089,"twenty":-27.056866,"median":22.637956,"eighty":30.613547,"marketCap":1577560218},{"date":"2022-10-21","current":20.493771,"twenty":-27.056866,"median":22.532346,"eighty":30.590112,"marketCap":1594968739},{"date":"2022-10-28","current":21.527183,"twenty":-27.056866,"median":22.46117,"eighty":30.532322,"marketCap":1675396109},{"date":"2022-11-04","current":20.865084,"twenty":-27.056866,"median":22.418162,"eighty":30.500316,"marketCap":1623866885},{"date":"2022-11-11","current":20.994099,"twenty":-27.056866,"median":22.337719,"eighty":30.334478,"marketCap":1656329407},{"date":"2022-11-18","current":21.661425,"twenty":-27.056866,"median":22.274105,"eighty":30.246387,"marketCap":1708978149},{"date":"2022-11-25","current":22.061821,"twenty":-27.056866,"median":22.232507,"eighty":30.108283,"marketCap":1740567393},{"date":"2022-12-02","current":20.767207,"twenty":-27.056866,"median":22.170951,"eighty":30.010029,"marketCap":1638428835},{"date":"2022-12-09","current":21.341108,"twenty":-27.056866,"median":22.127431,"eighty":29.879251,"marketCap":1683706753},{"date":"2022-12-16","current":20.615947,"twenty":-27.056866,"median":22.078356,"eighty":29.689939,"marketCap":1626495120},{"date":"2022-12-23","current":21.229887,"twenty":-27.056866,"median":22.062825,"eighty":29.683721,"marketCap":1674931962},{"date":"2022-12-30","current":21.172052,"twenty":-27.056866,"median":22.033308,"eighty":29.683721,"marketCap":1670369071},{"date":"2023-01-06","current":21.910561,"twenty":-27.056866,"median":21.963986,"eighty":29.683721,"marketCap":1728633679},{"date":"2023-01-13","current":22.057372,"twenty":-27.056866,"median":21.941703,"eighty":29.683721,"marketCap":1740216402},{"date":"2023-01-20","current":21.692567,"twenty":-27.056866,"median":21.910561,"eighty":29.683721,"marketCap":1711435090},{"date":"2023-01-27","current":22.262019,"twenty":-27.056866,"median":21.892765,"eighty":29.683721,"marketCap":1756362016},{"date":"2023-02-03","current":23.031669,"twenty":-27.056866,"median":21.859562,"eighty":29.683721,"marketCap":1817083564},{"date":"2023-02-10","current":21.594693,"twenty":-27.056866,"median":21.844644,"eighty":29.683721,"marketCap":1703713274},{"date":"2023-02-17","current":21.830481,"twenty":-27.056866,"median":21.804863,"eighty":29.683721,"marketCap":1722315830},{"date":"2023-02-24","current":19.350638,"twenty":-26.967244,"median":21.786655,"eighty":29.683721,"marketCap":1670018080},{"date":"2023-03-03","current":19.877411,"twenty":14.903882,"median":21.786655,"eighty":29.683721,"marketCap":1715480176},{"date":"2023-03-10","current":18.790268,"twenty":15.131493,"median":21.786655,"eighty":29.683721,"marketCap":1621656525},{"date":"2023-03-17","current":19.477968,"twenty":15.232719,"median":21.786655,"eighty":29.683721,"marketCap":1681007092},{"date":"2023-03-24","current":19.111469,"twenty":15.352864,"median":21.786655,"eighty":29.683721,"marketCap":1649377149},{"date":"2023-03-31","current":19.585035,"twenty":15.419,"median":21.784738,"eighty":29.683438,"marketCap":1690247300},{"date":"2023-04-06","current":19.889765,"twenty":15.47565,"median":21.784738,"eighty":29.683438,"marketCap":1716546354},{"date":"2023-04-14","current":19.597389,"twenty":15.540758,"median":21.786655,"eighty":29.683721,"marketCap":1691313478},{"date":"2023-04-21","current":19.605625,"twenty":15.557581,"median":21.786655,"eighty":29.683721,"marketCap":1692024263},{"date":"2023-04-28","current":19.465614,"twenty":15.596639,"median":21.786655,"eighty":29.683721,"marketCap":1679940914},{"date":"2023-05-05","current":16.883202,"twenty":15.664723,"median":21.786655,"eighty":29.683721,"marketCap":1717612532},{"date":"2023-05-12","current":16.247895,"twenty":15.704351,"median":21.786655,"eighty":29.683721,"marketCap":1652979573},{"date":"2023-05-19","current":15.731752,"twenty":15.767048,"median":21.786655,"eighty":29.683721,"marketCap":1600469778},{"date":"2023-05-26","current":15.484286,"twenty":15.797714,"median":21.786655,"eighty":29.683721,"marketCap":1575293849},{"date":"2023-06-02","current":14.893904,"twenty":15.801246,"median":21.79464,"eighty":29.684003,"marketCap":1515231275},{"date":"2023-06-09","current":15.533779,"twenty":15.801246,"median":21.79464,"eighty":29.684003,"marketCap":1580329035},{"date":"2023-06-16","current":15.038848,"twenty":15.801246,"median":21.79464,"eighty":29.684003,"marketCap":1529977177},{"date":"2023-06-23","current":15.063594,"twenty":15.802735,"median":21.802624,"eighty":29.684286,"marketCap":1532494769},{"date":"2023-06-30","current":15.14844,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1541126517},{"date":"2023-07-07","current":14.964608,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1522424398},{"date":"2023-07-14","current":15.293384,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1555872418},{"date":"2023-07-21","current":15.661047,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1593276655},{"date":"2023-07-28","current":15.441863,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1570977975},{"date":"2023-08-04","current":15.087487,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1527819240},{"date":"2023-08-11","current":14.570116,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1475428232},{"date":"2023-08-18","current":14.491763,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1467493883},{"date":"2023-08-25","current":14.103559,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1428182791},{"date":"2023-09-01","current":13.989591,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1416641920},{"date":"2023-09-08","current":13.929045,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1410510832},{"date":"2023-09-15","current":14.548747,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1473264318},{"date":"2023-09-22","current":14.142735,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1432149965},{"date":"2023-09-29","current":13.629879,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1380216045},{"date":"2023-10-06","current":13.576456,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1374806262},{"date":"2023-10-13","current":13.79727,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1397166700},{"date":"2023-10-20","current":14.22465,"twenty":15.803849,"median":21.803649,"eighty":29.684569,"marketCap":1440444966},{"date":"2023-10-27","current":13.412627,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1358216260},{"date":"2023-11-03","current":13.740285,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1391396264},{"date":"2023-11-10","current":13.668266,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1328063365},{"date":"2023-11-17","current":14.061924,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1366312767},{"date":"2023-11-24","current":13.804532,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1341303543},{"date":"2023-12-01","current":13.86131,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1346820284},{"date":"2023-12-08","current":14.603204,"twenty":15.826441,"median":21.804768,"eighty":29.689939,"marketCap":1418905695},{"date":"2023-12-15","current":14.868166,"twenty":15.826441,"median":21.804768,"eighty":29.689939,"marketCap":1444650484},{"date":"2023-12-22","current":14.580493,"twenty":15.826441,"median":21.804768,"eighty":29.689939,"marketCap":1416698998},{"date":"2023-12-29","current":14.769751,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1435088134},{"date":"2024-01-05","current":15.023358,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1459729575},{"date":"2024-01-12","current":14.501004,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1408975562},{"date":"2024-01-19","current":14.296605,"twenty":15.873161,"median":21.812645,"eighty":29.697995,"marketCap":1389115295},{"date":"2024-01-26","current":14.758396,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1433984786},{"date":"2024-02-02","current":14.016502,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1361899375},{"date":"2024-02-09","current":13.384378,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1300479662},{"date":"2024-02-16","current":13.64934,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1326224452},{"date":"2024-02-23","current":15.049854,"twenty":15.853149,"median":21.808754,"eighty":29.69531,"marketCap":1462304054},{"date":"2024-03-01","current":14.746702,"twenty":15.837345,"median":21.804863,"eighty":29.692625,"marketCap":1384243427},{"date":"2024-03-08","current":15.07182,"twenty":15.796351,"median":21.773234,"eighty":29.692625,"marketCap":1414761587},{"date":"2024-03-15","current":14.513902,"twenty":15.745711,"median":21.747413,"eighty":29.692625,"marketCap":1362390918},{"date":"2024-03-22","current":14.646357,"twenty":15.696173,"median":21.700438,"eighty":29.692625,"marketCap":1374824242},{"date":"2024-03-28","current":14.718605,"twenty":15.666313,"median":21.685086,"eighty":29.680797,"marketCap":1381606055},{"date":"2024-04-05","current":14.750716,"twenty":15.638102,"median":21.620913,"eighty":29.681976,"marketCap":1384620195},{"date":"2024-04-12","current":14.612472,"twenty":15.593876,"median":21.605472,"eighty":29.681976,"marketCap":1371643484},{"date":"2024-04-19","current":14.823131,"twenty":15.558706,"median":21.576315,"eighty":29.681976,"marketCap":1391417662},{"date":"2024-04-26","current":15.661718,"twenty":15.549043,"median":21.527823,"eighty":29.653294,"marketCap":1470134103},{"date":"2024-05-03","current":15.714382,"twenty":15.536141,"median":21.503868,"eighty":29.499132,"marketCap":1475077648},{"date":"2024-05-10","current":16.958374,"twenty":15.536141,"median":21.474574,"eighty":29.289898,"marketCap":1458759335},{"date":"2024-05-17","current":17.015845,"twenty":15.536141,"median":21.442184,"eighty":29.018969,"marketCap":1463702993},{"date":"2024-05-24","current":16.237776,"twenty":15.536141,"median":21.421995,"eighty":28.366151,"marketCap":1396773472},{"date":"2024-05-31","current":16.542814,"twenty":15.536141,"median":21.401921,"eighty":27.925876,"marketCap":1423012886},{"date":"2024-06-07","current":15.968104,"twenty":15.536141,"median":21.341108,"eighty":27.600779,"marketCap":1373576308},{"date":"2024-06-14","current":15.658645,"twenty":15.536141,"median":21.314367,"eighty":27.236075,"marketCap":1346956612},{"date":"2024-06-21","current":15.450865,"twenty":15.528232,"median":21.29489,"eighty":27.036258,"marketCap":1329083388},{"date":"2024-06-28","current":15.963683,"twenty":15.528232,"median":21.241443,"eighty":26.709283,"marketCap":1373196027},{"date":"2024-07-05","current":15.610015,"twenty":15.528232,"median":21.206728,"eighty":26.379031,"marketCap":1342773517},{"date":"2024-07-12","current":16.746173,"twenty":15.528232,"median":21.146129,"eighty":25.983374,"marketCap":1440505829},{"date":"2024-07-19","current":17.391617,"twenty":15.528232,"median":21.113339,"eighty":25.790016,"marketCap":1496026909},{"date":"2024-07-26","current":17.997273,"twenty":15.528232,"median":21.058606,"eighty":25.686316,"marketCap":1548125457},{"date":"2024-08-02","current":18.356694,"twenty":15.528232,"median":21.0353,"eighty":25.446963,"marketCap":1505046986},{"date":"2024-08-09","current":18.045404,"twenty":15.528232,"median":20.986811,"eighty":25.342889,"marketCap":1479524606},{"date":"2024-08-16","current":18.210482,"twenty":15.528232,"median":20.914184,"eighty":25.211876,"marketCap":1493059201},{"date":"2024-08-23","current":18.91796,"twenty":15.528232,"median":20.860022,"eighty":25.067151,"marketCap":1551064609},{"date":"2024-08-30","current":18.969842,"twenty":15.528232,"median":20.827902,"eighty":24.866309,"marketCap":1555318339},{"date":"2024-09-06","current":18.49819,"twenty":15.528232,"median":20.769172,"eighty":24.79879,"marketCap":1516648067},{"date":"2024-09-13","current":19.021723,"twenty":15.528232,"median":20.643639,"eighty":24.726046,"marketCap":1559572069},{"date":"2024-09-20","current":18.620819,"twenty":15.528232,"median":20.588256,"eighty":24.665466,"marketCap":1526702338},{"date":"2024-09-27","current":19.083038,"twenty":15.528232,"median":20.412875,"eighty":24.588958,"marketCap":1564599205},{"date":"2024-10-04","current":18.639685,"twenty":15.528232,"median":20.265615,"eighty":24.455114,"marketCap":1528249149},{"date":"2024-10-11","current":18.790614,"twenty":15.528232,"median":20.104231,"eighty":24.415479,"marketCap":1540623636},{"date":"2024-10-18","current":19.182085,"twenty":15.528232,"median":19.942821,"eighty":24.367383,"marketCap":1572719962},{"date":"2024-10-25","current":18.847212,"twenty":15.528232,"median":19.80889,"eighty":24.314684,"marketCap":1545264069},{"date":"2024-11-01","current":18.163317,"twenty":15.528232,"median":19.67071,"eighty":24.271288,"marketCap":1489192174},{"date":"2024-11-08","current":19.281132,"twenty":15.528232,"median":19.609743,"eighty":24.189016,"marketCap":1580840719},{"date":"2024-11-15","current":21.034961,"twenty":15.528232,"median":19.607684,"eighty":24.150182,"marketCap":1651433775},{"date":"2024-11-22","current":22.379359,"twenty":15.528232,"median":19.607684,"eighty":24.063847,"marketCap":1756981061},{"date":"2024-11-29","current":22.399806,"twenty":15.528232,"median":19.607684,"eighty":24.021979,"marketCap":1758586343},{"date":"2024-12-06","current":21.418345,"twenty":15.528232,"median":19.607684,"eighty":23.950194,"marketCap":1681532811},{"date":"2024-12-13","current":21.372339,"twenty":15.528232,"median":19.607684,"eighty":23.87961,"marketCap":1677920926},{"date":"2024-12-20","current":20.227301,"twenty":15.528232,"median":19.607684,"eighty":23.828664,"marketCap":1588025139},{"date":"2024-12-27","current":20.181295,"twenty":15.528232,"median":19.607684,"eighty":23.79092,"marketCap":1584413255},{"date":"2025-01-03","current":20.288642,"twenty":15.528232,"median":19.607684,"eighty":23.755138,"marketCap":1592840985},{"date":"2025-01-10","current":19.583217,"twenty":15.527844,"median":19.597389,"eighty":23.683064,"marketCap":1537458758},{"date":"2025-01-17","current":20.65669,"twenty":15.527844,"median":19.597389,"eighty":23.635577,"marketCap":1621736059},{"date":"2025-01-24","current":20.385766,"twenty":15.527844,"median":19.597389,"eighty":23.602955,"marketCap":1600466074},{"date":"2025-01-31","current":20.406213,"twenty":15.527844,"median":19.597389,"eighty":23.544065,"marketCap":1602071356},{"date":"2025-02-07","current":20.441995,"twenty":15.527844,"median":19.597389,"eighty":23.508667,"marketCap":1604880599},{"date":"2025-02-14","current":20.774261,"twenty":15.527844,"median":19.597389,"eighty":23.398628,"marketCap":1630966430},{"date":"2025-02-21","current":21.172979,"twenty":15.527844,"median":19.597389,"eighty":23.340704,"marketCap":1662269428},{"date":"2025-02-28","current":20.856204,"twenty":15.527844,"median":19.597389,"eighty":23.227027,"marketCap":1644949675},{"date":"2025-03-07","current":21.391894,"twenty":15.527071,"median":19.591212,"eighty":23.142458,"marketCap":1687200095},{"date":"2025-03-14","current":21.340876,"twenty":15.527071,"median":19.591212,"eighty":23.08958,"marketCap":1683176245},{"date":"2025-03-21","current":21.055175,"twenty":15.527071,"median":19.591212,"eighty":23.059635,"marketCap":1660642688},{"date":"2025-03-28","current":21.749021,"twenty":15.527071,"median":19.591212,"eighty":23.030798,"marketCap":1715367041},{"date":"2025-04-04","current":21.024564,"twenty":15.527071,"median":19.591212,"eighty":22.97188,"marketCap":1658228378},{"date":"2025-04-11","current":21.08684,"twenty":15.527844,"median":19.597389,"eighty":22.869,"marketCap":1663140139},{"date":"2025-04-17","current":21.970995,"twenty":15.527844,"median":19.597389,"eighty":22.769548,"marketCap":1732874323},{"date":"2025-04-25","current":22.461624,"twenty":15.527071,"median":19.591212,"eighty":22.719064,"marketCap":1771570749},{"date":"2025-05-02","current":22.07832,"twenty":15.527071,"median":19.591212,"eighty":22.615931,"marketCap":1741339166},{"date":"2025-05-09","current":16.767676,"twenty":15.527071,"median":19.55691,"eighty":22.534556,"marketCap":1726467020},{"date":"2025-05-16","current":16.090392,"twenty":15.527071,"median":19.471791,"eighty":22.478676,"marketCap":1656731136},{"date":"2025-05-23","current":15.835921,"twenty":15.527071,"median":19.410801,"eighty":22.42424,"marketCap":1630529792},{"date":"2025-05-30","current":16.012093,"twenty":15.527071,"median":19.37296,"eighty":22.407225,"marketCap":1648669184},{"date":"2025-06-06","current":15.585365,"twenty":15.527071,"median":19.340016,"eighty":22.366497,"marketCap":1604731545},{"date":"2025-06-13","current":15.769367,"twenty":15.527071,"median":19.300148,"eighty":22.322674,"marketCap":1623677132},{"date":"2025-06-20","current":15.546216,"twenty":15.526298,"median":19.27207,"eighty":22.283662,"marketCap":1600700569},{"date":"2025-06-27","current":15.616685,"twenty":15.519481,"median":19.14273,"eighty":22.244469,"marketCap":1607956326},{"date":"2025-07-03","current":16.160861,"twenty":15.519481,"median":19.125487,"eighty":22.210053,"marketCap":1663986892},{"date":"2025-07-11","current":16.364438,"twenty":15.519481,"median":19.097188,"eighty":22.130012,"marketCap":1684947968},{"date":"2025-07-18","current":16.352693,"twenty":15.519481,"median":19.083038,"eighty":22.123844,"marketCap":1683738675},{"date":"2025-07-25","current":15.976859,"twenty":15.519481,"median":19.054175,"eighty":22.103887,"marketCap":1645041305},{"date":"2025-08-01","current":15.62843,"twenty":15.519481,"median":19.017955,"eighty":22.073759,"marketCap":1609165619},{"date":"2025-08-08","current":15.879595,"twenty":15.519481,"median":18.983813,"eighty":22.062223,"marketCap":1639584081},{"date":"2025-08-15","current":16.188861,"twenty":15.519481,"median":18.930279,"eighty":22.055769,"marketCap":1671516056},{"date":"2025-08-22","current":16.141281,"twenty":15.519481,"median":18.894377,"eighty":21.996697,"marketCap":1666603444},{"date":"2025-08-29","current":16.375213,"twenty":15.519481,"median":18.873467,"eighty":21.961293,"marketCap":1690757117},{"date":"2025-09-05","current":16.474337,"twenty":15.519258,"median":18.866078,"eighty":21.943234,"marketCap":1700991724},{"date":"2025-09-12","current":16.736023,"twenty":15.519481,"median":18.807874,"eighty":21.923918,"marketCap":1728011088},{"date":"2025-09-19","current":16.807392,"twenty":15.519481,"median":18.729299,"eighty":21.855996,"marketCap":1735380005},{"date":"2025-09-26","current":17.322834,"twenty":15.519481,"median":18.64907,"eighty":21.821077,"marketCap":1788599963},{"date":"2025-10-03","current":17.536941,"twenty":15.519481,"median":18.620819,"eighty":21.798012,"marketCap":1810706714},{"date":"2025-10-10","current":17.318869,"twenty":15.519481,"median":18.559312,"eighty":21.768998,"marketCap":1788190578},{"date":"2025-10-17","current":18.012734,"twenty":15.519481,"median":18.49819,"eighty":21.748056,"marketCap":1859832829},{"date":"2025-10-24","current":18.758144,"twenty":15.519481,"median":18.49819,"eighty":21.708049,"marketCap":1936797075},{"date":"2025-10-31","current":18.32993,"twenty":15.519481,"median":18.489657,"eighty":21.684911,"marketCap":1892583572},{"date":"2025-11-07","current":19.236562,"twenty":15.519481,"median":18.451024,"eighty":21.624029,"marketCap":1933813086},{"date":"2025-11-14","current":19.926089,"twenty":15.519481,"median":18.451024,"eighty":21.61455,"marketCap":2003129846},{"date":"2025-11-21","current":19.65771,"twenty":15.519481,"median":18.451024,"eighty":21.589135,"marketCap":1976150269},{"date":"2025-11-28","current":20.310077,"twenty":15.519481,"median":18.451024,"eighty":21.560209,"marketCap":2041731395},{"date":"2025-12-05","current":19.079663,"twenty":15.519481,"median":18.451024,"eighty":21.527439,"marketCap":1918040410},{"date":"2025-12-12","current":19.174628,"twenty":15.519481,"median":18.451024,"eighty":21.502468,"marketCap":1927587030},{"date":"2025-12-19","current":19.595776,"twenty":15.519481,"median":18.451024,"eighty":21.475865,"marketCap":1969924213},{"date":"2025-12-26","current":19.443007,"twenty":15.519481,"median":18.451024,"eighty":21.468129,"marketCap":1954566607},{"date":"2026-01-02","current":19.298495,"twenty":15.519481,"median":18.451024,"eighty":21.444463,"marketCap":1940039143},{"date":"2026-01-09","current":19.397589,"twenty":15.519481,"median":18.451024,"eighty":21.425231,"marketCap":1950000833},{"date":"2026-01-16","current":19.39346,"twenty":15.519481,"median":18.451024,"eighty":21.404118,"marketCap":1949585762},{"date":"2026-01-23","current":19.31914,"twenty":15.519481,"median":18.451024,"eighty":21.395905,"marketCap":1942114495},{"date":"2026-01-30","current":19.426491,"twenty":15.519481,"median":18.451024,"eighty":21.37608,"marketCap":1952906326},{"date":"2026-02-06","current":20.058214,"twenty":15.519481,"median":18.451024,"eighty":21.344634,"marketCap":2016412100},{"date":"2026-02-13","current":20.570198,"twenty":15.519481,"median":18.451024,"eighty":21.338022,"marketCap":2067880832},{"date":"2026-02-20","current":20.355495,"twenty":15.519481,"median":18.451024,"eighty":21.306388,"marketCap":2046297170},{"date":"2026-02-27","current":20.755998,"twenty":15.519481,"median":18.451024,"eighty":21.294544,"marketCap":2086559001},{"date":"2026-03-06","current":19.09489,"twenty":15.519481,"median":18.451024,"eighty":21.294544,"marketCap":2163813822},{"date":"2026-03-13","current":19.050876,"twenty":15.519481,"median":18.451024,"eighty":21.28546,"marketCap":2158826161},{"date":"2026-03-20","current":19.461676,"twenty":15.519481,"median":18.451024,"eighty":21.276756,"marketCap":2205377668},{"date":"2026-03-27","current":19.388319,"twenty":15.519481,"median":18.451024,"eighty":21.276756,"marketCap":2197064899},{"date":"2026-04-02","current":19.696419,"twenty":15.519481,"median":18.451024,"eighty":21.269641,"marketCap":2231978530},{"date":"2026-04-10","current":20.46667,"twenty":15.519481,"median":18.451024,"eighty":21.232949,"marketCap":2319262606},{"date":"2026-04-17","current":20.000852,"twenty":15.519481,"median":18.451024,"eighty":21.183285,"marketCap":2266476522},{"date":"2026-04-24","current":19.870466,"twenty":15.519481,"median":18.451024,"eighty":21.136231,"marketCap":2251701335},{"date":"2026-05-01","current":19.681082,"twenty":15.519481,"median":18.451024,"eighty":21.11302,"marketCap":2230240530},{"date":"2026-05-08","current":17.185787,"twenty":15.519481,"median":18.441591,"eighty":21.106526,"marketCap":2111995701},{"date":"2026-05-15","current":17.09005,"twenty":15.519481,"median":18.40396,"eighty":21.106526,"marketCap":2100230368},{"date":"2026-05-22","current":17.059232,"twenty":15.519481,"median":18.362533,"eighty":21.106526,"marketCap":2096443136},{"date":"2026-05-29","current":16.829812,"twenty":15.519258,"median":18.355207,"eighty":21.106526,"marketCap":2068249300},{"date":"2026-06-05","current":16.740784,"twenty":15.519481,"median":18.331463,"eighty":21.106526,"marketCap":2057308409},{"date":"2026-06-12","current":16.874327,"twenty":15.519481,"median":18.258966,"eighty":21.106526,"marketCap":2073719746},{"date":"2026-06-18","current":16.733936,"twenty":15.519481,"median":18.224631,"eighty":21.106526,"marketCap":2056466802},{"date":"2026-06-26","current":17.292076,"twenty":15.519258,"median":18.186899,"eighty":21.106526,"marketCap":2125057776},{"date":"2026-07-02","current":16.685997,"twenty":15.519258,"median":18.127777,"eighty":21.106526,"marketCap":2050575552},{"date":"2026-07-10","current":16.994173,"twenty":15.519258,"median":18.113793,"eighty":21.106526,"marketCap":2088447869},{"date":"2026-07-17","current":17.637917,"twenty":15.519258,"median":18.052107,"eighty":21.106526,"marketCap":2167558931},{"date":"2026-07-24","current":17.576282,"twenty":15.519258,"median":18.052107,"eighty":21.106526,"marketCap":2159984468},{"date":"2026-07-31","current":17.13114,"twenty":15.519034,"median":18.010536,"eighty":21.106526,"marketCap":2105280010},{"date":"2026-08-07","current":16.9621,"twenty":15.519034,"median":17.944223,"eighty":21.106526,"marketCap":2137088924},{"date":"2026-08-14","current":16.975464,"twenty":15.519034,"median":17.944223,"eighty":21.106526,"marketCap":2138772665},{"date":"2026-08-21","current":16.901963,"twenty":15.519034,"median":17.944223,"eighty":21.106526,"marketCap":2129512087}],"updateTime":1787499359945},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"NWN\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"21579862","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000127-NWN","pdf_url":"","pub_time":1785902400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"NWN","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000127/0001733998-26-000127-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/nwn-20260630.htm","primary":true,"translateUrl":"","linkName":"nwn-20260630.htm","type":"10-Q","id":"NTFILEDJHTg6uuZkHd73Tg","market":"us","size":3199508},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3112026q2.htm","primary":false,"translateUrl":"","linkName":"ex3112026q2.htm","type":"EX-31.1","id":"NTFILE5kR22Hjn9fZjqDvo","market":"us","size":8070},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3122026q2.htm","primary":false,"translateUrl":"","linkName":"ex3122026q2.htm","type":"EX-31.2","id":"NTFILE8iYAqh2fs9UESH8e","market":"us","size":8129},{"description":"EX-31.3","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3132026q2.htm","primary":false,"translateUrl":"","linkName":"ex3132026q2.htm","type":"EX-31.3","id":"NTFILE42eRFcmaAwF5WLH4","market":"us","size":8042},{"description":"EX-31.4","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3142026q2.htm","primary":false,"translateUrl":"","linkName":"ex3142026q2.htm","type":"EX-31.4","id":"NTFILE4MoXuoWp5Z75NrW6","market":"us","size":8171},{"description":"EX-32.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3212026q2.htm","primary":false,"translateUrl":"","linkName":"ex3212026q2.htm","type":"EX-32.1","id":"NTFILE2eCQWhdA6xgg31b5","market":"us","size":6050},{"description":"EX-32.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/ex3222026q2.htm","primary":false,"translateUrl":"","linkName":"ex3222026q2.htm","type":"EX-32.2","id":"NTFILE3XPMYTPcpTYozZiG","market":"us","size":6162},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/nwn-20260630_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260630_g1.jpg","type":"GRAPHIC","id":"NTFILECUWtfaxDZCcWFv79","market":"us","size":57055},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000127/nwn-20260630_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260630_g2.jpg","type":"GRAPHIC","id":"NTFILEByEGbjeGwr2P6WQD","market":"us","size":38736}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-08-05 12:00","pubTimestamp":1785902400,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21579853","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000125-NWN","pdf_url":"","pub_time":1785902400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000125/0001733998-26-000125-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000125/a2026q2ex991pressreleasedo.htm","primary":true,"translateUrl":"","linkName":"a2026q2ex991pressreleasedo.htm","type":"EX-99.1","id":"NTFILEHVg5gFucXeXcgLYH","market":"us","size":384026},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000125/nwn-20260805.htm","primary":false,"translateUrl":"","linkName":"nwn-20260805.htm","type":"8-K","id":"NTFILEE6Rf5i9EtsjJh7dz","market":"us","size":51615},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000125/nwn-20260805_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260805_g1.jpg","type":"GRAPHIC","id":"NTFILEFu9CkxXyXMssev9v","market":"us","size":57055},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000125/nwn-20260805_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260805_g2.jpg","type":"GRAPHIC","id":"NTFILEGEc4cV97TKSs6c24","market":"us","size":38736},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000125/nwnholdingslogohza26.jpg","primary":false,"translateUrl":"","linkName":"nwnholdingslogohza26.jpg","type":"GRAPHIC","id":"NTFILE9nNSQKqGeD3ADyuk","market":"us","size":64564}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-08-05 12:00","pubTimestamp":1785902400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21561100","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000123-NWN","pdf_url":"","pub_time":1785470400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000123/0001733998-26-000123-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"GRAPHIC","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000123/nwn-20260729_g1.jpg","primary":true,"translateUrl":"","linkName":"nwn-20260729_g1.jpg","type":"GRAPHIC","id":"NTFILE61SQmuMa46SFCnYi","market":"us","size":57055},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000123/nwn-20260729.htm","primary":false,"translateUrl":"","linkName":"nwn-20260729.htm","type":"8-K","id":"NTFILE9QPzPCAFLGW9Q8Qq","market":"us","size":56636},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000123/nwn-20260729_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260729_g2.jpg","type":"GRAPHIC","id":"NTFILE4dFsxhtXk1SWoP9c","market":"us","size":38736}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-07-31 12:00","pubTimestamp":1785470400,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21438388","market":"us","labels":[],"media":"sec.gov","original_id":"AN194984626000414-NWN","pdf_url":"","pub_time":1782446400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NWN","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000194984626000414/0001949846-26-000414-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1241405/000194984626000414/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEGK7dFri4zEMVSq4X","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-06-26 12:00","pubTimestamp":1782446400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21433057","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000117-NWN","pdf_url":"","pub_time":1782360000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","symbol":"NWN","title":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000117/0001733998-26-000117-index.htm","us_notice_code":"Form 11-K","us_title_en":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"11-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000117/nwn-20260625.htm","primary":true,"translateUrl":"","linkName":"nwn-20260625.htm","type":"11-K","id":"NTFILE2pdfj5KWu8QU6ghc","market":"us","size":313367},{"description":"EX-23","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000117/a2025exhibit23consent11-k.htm","primary":false,"translateUrl":"","linkName":"a2025exhibit23consent11-k.htm","type":"EX-23","id":"NTFILEHLFtXACcnx63n3bh","market":"us","size":2150},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000117/nwn-20260625_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260625_g1.jpg","type":"GRAPHIC","id":"NTFILE6Twjreo3iXVibVJn","market":"us","size":46433}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2026-06-25 12:00","pubTimestamp":1782360000,"title_zh":"Form 11-K - Annual report of employee stock purchase, savings and similar plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21364908","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000114-NWN","pdf_url":"","pub_time":1780632000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000114/0001733998-26-000114-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-4.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000114/ex41-notepurchaseagreement.htm","primary":true,"translateUrl":"","linkName":"ex41-notepurchaseagreement.htm","type":"EX-4.1","id":"NTFILE83riDyWcbUq2tX7w","market":"us","size":763295},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000114/nwn-20260604.htm","primary":false,"translateUrl":"","linkName":"nwn-20260604.htm","type":"8-K","id":"NTFILEB544WYVahiwUCMvC","market":"us","size":41730},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000114/nwn-20260604_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260604_g1.jpg","type":"GRAPHIC","id":"NTFILE6wr424DkuZWEwdpF","market":"us","size":6027}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-06-05 12:00","pubTimestamp":1780632000,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21338335","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000111-NWN","pdf_url":"","pub_time":1780286400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000111/0001733998-26-000111-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000111/nwn-20260528_g1.jpg","primary":true,"translateUrl":"","linkName":"nwn-20260528_g1.jpg","type":"GRAPHIC","id":"NTFILECjCvLJs8a8jBgJVG","market":"us","size":6027},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000111/nwn-20260528.htm","primary":false,"translateUrl":"","linkName":"nwn-20260528.htm","type":"8-K","id":"NTFILE7eLjtmo8fMpojxZK","market":"us","size":37595}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-06-01 12:00","pubTimestamp":1780286400,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.07: Submission of Matters to a Vote of Security Holders","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21246502","market":"us","labels":[],"media":"sec.gov","original_id":"AN9375126000275-NWN","pdf_url":"","pub_time":1778558400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"NWN","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000009375126000275/0000093751-26-000275-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/93751/000009375126000275/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILEm6UHipTbs1XpkQxJ","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-12 12:00","pubTimestamp":1778558400,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21221506","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000087-NWN","pdf_url":"","pub_time":1778098265000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"NWN","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1733998/0001733998-26-000087-index.html","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/nwn-20260331.htm","primary":true,"translateUrl":"","linkName":"nwn-20260331.htm","type":"10-Q","id":"NTFILE4YNrDonswdxFjB15","market":"us","size":2498189},{"description":"EX-10.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex101nwn-reimbursementagre.htm","primary":false,"translateUrl":"","linkName":"ex101nwn-reimbursementagre.htm","type":"EX-10.1","id":"NTFILECQhit6V5wJCbVda3","market":"us","size":139212},{"description":"EX-31.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3112026q1.htm","primary":false,"translateUrl":"","linkName":"ex3112026q1.htm","type":"EX-31.1","id":"NTFILEAokni1YF94hVY97q","market":"us","size":8068},{"description":"EX-31.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3122026q1.htm","primary":false,"translateUrl":"","linkName":"ex3122026q1.htm","type":"EX-31.2","id":"NTFILE37vR6ovAnibcc97k","market":"us","size":8127},{"description":"EX-31.3","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3132026q1.htm","primary":false,"translateUrl":"","linkName":"ex3132026q1.htm","type":"EX-31.3","id":"NTFILEGLQcBuLxbhJXFMgj","market":"us","size":8040},{"description":"EX-31.4","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3142026q1.htm","primary":false,"translateUrl":"","linkName":"ex3142026q1.htm","type":"EX-31.4","id":"NTFILEHpsLFX6S6f4pus7Q","market":"us","size":8169},{"description":"EX-32.1","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3212026q1.htm","primary":false,"translateUrl":"","linkName":"ex3212026q1.htm","type":"EX-32.1","id":"NTFILE2Rf3HgGwfE4ZHRa1","market":"us","size":6036},{"description":"EX-32.2","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/ex3222026q1.htm","primary":false,"translateUrl":"","linkName":"ex3222026q1.htm","type":"EX-32.2","id":"NTFILECHP5aUBDQ36pT28w","market":"us","size":6148},{"description":"","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/nwn-20260331_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260331_g1.jpg","type":"GRAPHIC","id":"NTFILE48t1NhtJKP2BzQab","market":"us","size":57055},{"description":"","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000087/nwn-20260331_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260331_g2.jpg","type":"GRAPHIC","id":"NTFILEDwvi39iWWgPG2riY","market":"us","size":38736}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-05-07 04:11","pubTimestamp":1778098265,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21221311","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000085-NWN","pdf_url":"","pub_time":1778017372000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/0001733998-26-000085-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000085/a2026q1ex991pressreleasedo.htm","primary":true,"translateUrl":"","linkName":"a2026q1ex991pressreleasedo.htm","type":"EX-99.1","id":"NTFILEGh1uva7ChWFFXBsB","market":"us","size":297137},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000085/nwn-20260506.htm","primary":false,"translateUrl":"","linkName":"nwn-20260506.htm","type":"8-K","id":"NTFILEDNqsBrHL7nyEpRju","market":"us","size":52639},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000085/nwn-20260506_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260506_g1.jpg","type":"GRAPHIC","id":"NTFILEAtLwHwpCshWgmyXE","market":"us","size":57055},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000085/nwn-20260506_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260506_g2.jpg","type":"GRAPHIC","id":"NTFILE25bSY3kepuxP7gAm","market":"us","size":38736},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000085/nwnholdingslogohza26.jpg","primary":false,"translateUrl":"","linkName":"nwnholdingslogohza26.jpg","type":"GRAPHIC","id":"NTFILE3QCuuXgsv6kC3EQK","market":"us","size":64564}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-05-06 05:42","pubTimestamp":1778017372,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21197384","market":"us","labels":[],"media":"sec.gov","original_id":"AN210011926000806-NWN","pdf_url":"","pub_time":1777521600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"NWN","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000210011926000806/0002100119-26-000806-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000210011926000806/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILEGeKHirWwHU4vYnao","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-30 12:00","pubTimestamp":1777521600,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21189340","market":"us","labels":[],"media":"sec.gov","original_id":"AN210012126000600-NWN","pdf_url":"","pub_time":1777435200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"NWN","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000210012126000600/0002100121-26-000600-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000210012126000600/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILEE5xsBVwo2zwJXTox","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-29 12:00","pubTimestamp":1777435200,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21104660","market":"us","labels":[],"media":"sec.gov","original_id":"AN201238326001461-NWN","pdf_url":"","pub_time":1777003200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","symbol":"NWN","title":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000201238326001461/0002012383-26-001461-index.htm","us_notice_code":"Form SCHEDULE 13G/A","us_title_en":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000201238326001461/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G/A","id":"NTFILEHA9XP5yrFRnGGzbV","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-24 12:00","pubTimestamp":1777003200,"title_zh":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20881446","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000081-NWN","pdf_url":"","pub_time":1774307373000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/0001733998-26-000081-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000081/nwn-20260323_g1.jpg","primary":true,"translateUrl":"","linkName":"nwn-20260323_g1.jpg","type":"GRAPHIC","id":"NTFILEEEE3szMZeEbRzU1P","market":"us","size":57055},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000081/nwn-20260323.htm","primary":false,"translateUrl":"","linkName":"nwn-20260323.htm","type":"8-K","id":"NTFILEAdhBh68qQZ65N2Eh","market":"us","size":56862},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000081/nwn-20260323_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260323_g2.jpg","type":"GRAPHIC","id":"NTFILE5zFzB4puaXey3ehb","market":"us","size":38736}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-03-24 07:09","pubTimestamp":1774307373,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20874618","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326002574-NWN","pdf_url":"","pub_time":1774238400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NWN","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000195917326002574/0001959173-26-002574-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1538965/000195917326002574/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILEBCMDWBLKBGsFLAMD","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-03-23 12:00","pubTimestamp":1774238400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20874561","market":"us","labels":[],"media":"sec.gov","original_id":"AN195917326002571-NWN","pdf_url":"","pub_time":1774238400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 144 - Report of proposed sale of securities","symbol":"NWN","title":"Form 144 - Report of proposed sale of securities","titleType":"Proposed Sale Of Securities","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000195917326002571/0001959173-26-002571-index.htm","us_notice_code":"Form 144","us_title_en":"Form 144 - Report of proposed sale of securities","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1538965/000195917326002571/xsl144X01/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"144","id":"NTFILE3qZzwsKSUFeGDnbA","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Proposed Sale Of Securities","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Proposed Sale Of Securities","pubTime":"2026-03-23 12:00","pubTimestamp":1774238400,"title_zh":"Form 144 - Report of proposed sale of securities","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20776660","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000014-NWN","pdf_url":"","pub_time":1772168400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"NWN","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/0001733998-26-000014-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/nwnholdings-sx8xltip.htm","primary":true,"translateUrl":"","linkName":"nwnholdings-sx8xltip.htm","type":"S-8","id":"NTFILExr9QFLcm8sWGR8DG","market":"us","size":60413},{"description":"","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/exfilingfees.htm","primary":false,"translateUrl":"","linkName":"exfilingfees.htm","type":"EX-FILING FEES","id":"NTFILE6npjUPzj3aDJYjM9","market":"us","size":24554},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/ex51opinionofstoelrivesllp.htm","primary":false,"translateUrl":"","linkName":"ex51opinionofstoelrivesllp.htm","type":"EX-5.1","id":"NTFILECTFRsFc7sEBKWadi","market":"us","size":10808},{"description":"EX-23.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/ex231consentofpricewaterho.htm","primary":false,"translateUrl":"","linkName":"ex231consentofpricewaterho.htm","type":"EX-23.1","id":"NTFILE9dGKNfN1UdxWUDaA","market":"us","size":2735},{"description":"","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/image_0.jpg","primary":false,"translateUrl":"","linkName":"image_0.jpg","type":"GRAPHIC","id":"NTFILEE8bNVr6WLRbVXoWu","market":"us","size":6964},{"description":"","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000014/image_0a.jpg","primary":false,"translateUrl":"","linkName":"image_0a.jpg","type":"GRAPHIC","id":"NTFILE5nwyLBpih3LFAwjh","market":"us","size":2930}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2026-02-27 13:00","pubTimestamp":1772168400,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20776644","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000012-NWN","pdf_url":"","pub_time":1772168400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"NWN","title":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/0001733998-26-000012-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/nwn-20251231.htm","primary":true,"translateUrl":"","linkName":"nwn-20251231.htm","type":"10-K","id":"NTFILE4Ch4sC7q6uGLQB46","market":"us","size":4812233},{"description":"EX-10.EE","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10ee-redactedxformo.htm","primary":false,"translateUrl":"","linkName":"exhibit10ee-redactedxformo.htm","type":"EX-10.EE","id":"NTFILE6yvh9RjZpa6ZqxZ3","market":"us","size":81409},{"description":"EX-10.HH","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10hhformof2026rsuag.htm","primary":false,"translateUrl":"","linkName":"exhibit10hhformof2026rsuag.htm","type":"EX-10.HH","id":"NTFILE6vyAgteUf8CSSDBr","market":"us","size":126891},{"description":"EX-10.OO","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10oo-redactedxspeci.htm","primary":false,"translateUrl":"","linkName":"exhibit10oo-redactedxspeci.htm","type":"EX-10.OO","id":"NTFILE2CjMcnV7SYnjHjHB","market":"us","size":53800},{"description":"EX-10.T","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu.htm","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu.htm","type":"EX-10.T","id":"NTFILE2qgHJyEhj3k44RCt","market":"us","size":25054},{"description":"EX-19","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex19nwninsidertradingpolic.htm","primary":false,"translateUrl":"","linkName":"ex19nwninsidertradingpolic.htm","type":"EX-19","id":"NTFILED7Ypqke3D6raxP9G","market":"us","size":69897},{"description":"EX-21","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex2112312025.htm","primary":false,"translateUrl":"","linkName":"ex2112312025.htm","type":"EX-21","id":"NTFILEFq4JyP1x5j4h1SNz","market":"us","size":44346},{"description":"EX-23.A","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex23a2025consentofpublicac.htm","primary":false,"translateUrl":"","linkName":"ex23a2025consentofpublicac.htm","type":"EX-23.A","id":"NTFILE4vUWgULcqsH78sDd","market":"us","size":2481},{"description":"EX-23.B","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex23b2025consentofpublicac.htm","primary":false,"translateUrl":"","linkName":"ex23b2025consentofpublicac.htm","type":"EX-23.B","id":"NTFILEcC6rd1bgdR2YtmE7","market":"us","size":2331},{"description":"EX-31.1","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex311q42025_ceo.htm","primary":false,"translateUrl":"","linkName":"ex311q42025_ceo.htm","type":"EX-31.1","id":"NTFILECHH8jBAYB9P5gBR7","market":"us","size":7619},{"description":"EX-31.2","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex312q42025_cfo.htm","primary":false,"translateUrl":"","linkName":"ex312q42025_cfo.htm","type":"EX-31.2","id":"NTFILEHzsDoq95rdEgeMnV","market":"us","size":8125},{"description":"EX-31.3","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex313q42025_ceo.htm","primary":false,"translateUrl":"","linkName":"ex313q42025_ceo.htm","type":"EX-31.3","id":"NTFILE9n4VDd7eRwA7e4Lq","market":"us","size":7641},{"description":"EX-31.4","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex314q42025_cfo.htm","primary":false,"translateUrl":"","linkName":"ex314q42025_cfo.htm","type":"EX-31.4","id":"NTFILE7UP9XCR4tF2RJiKD","market":"us","size":8139},{"description":"EX-32.1","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex321q42025_ceocfo.htm","primary":false,"translateUrl":"","linkName":"ex321q42025_ceocfo.htm","type":"EX-32.1","id":"NTFILEDfsuR8msKA7EPU6Y","market":"us","size":5333},{"description":"EX-32.2","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/ex322q42025_ceocfo.htm","primary":false,"translateUrl":"","linkName":"ex322q42025_ceocfo.htm","type":"EX-32.2","id":"NTFILETzRpUBcWBjnkLXGi","market":"us","size":5415},{"description":"","seq":21,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu001.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu001.jpg","type":"GRAPHIC","id":"NTFILE6NwBaseaEDo78W7c","market":"us","size":196537},{"description":"","seq":22,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu002.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu002.jpg","type":"GRAPHIC","id":"NTFILE5z7ekUvQLwmzhhMe","market":"us","size":294577},{"description":"","seq":23,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu003.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu003.jpg","type":"GRAPHIC","id":"NTFILE81z3QbJzWEQnvbh9","market":"us","size":255786},{"description":"","seq":24,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu004.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu004.jpg","type":"GRAPHIC","id":"NTFILE7DG2PNdJ8zCtYTcH","market":"us","size":280140},{"description":"","seq":25,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu005.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu005.jpg","type":"GRAPHIC","id":"NTFILEADhrvm2WhGuFKrta","market":"us","size":198520},{"description":"","seq":26,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu006.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu006.jpg","type":"GRAPHIC","id":"NTFILECQxKKKpQfQZ3rtUN","market":"us","size":208148},{"description":"","seq":27,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu007.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu007.jpg","type":"GRAPHIC","id":"NTFILE4kdwJY2a3Zv5JCfP","market":"us","size":52733},{"description":"","seq":28,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu008.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu008.jpg","type":"GRAPHIC","id":"NTFILE6iiQS9t3YnxsLSwS","market":"us","size":36165},{"description":"","seq":29,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu009.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu009.jpg","type":"GRAPHIC","id":"NTFILEENotzojPyjfTbmid","market":"us","size":112656},{"description":"","seq":30,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu010.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu010.jpg","type":"GRAPHIC","id":"NTFILEB2McXrhjy3uVspEs","market":"us","size":123505},{"description":"","seq":31,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/exhibit10t-executiveannu011.jpg","primary":false,"translateUrl":"","linkName":"exhibit10t-executiveannu011.jpg","type":"GRAPHIC","id":"NTFILEAr4e45vPgA9Ex6TV","market":"us","size":60570},{"description":"","seq":32,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/nwn-20251231_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20251231_g1.jpg","type":"GRAPHIC","id":"NTFILE7dyKdwwsSJicrsfy","market":"us","size":57055},{"description":"","seq":33,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000012/nwn-20251231_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20251231_g2.jpg","type":"GRAPHIC","id":"NTFILEBc9NvPSDvwT8BsNy","market":"us","size":38736}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2026-02-27 13:00","pubTimestamp":1772168400,"title_zh":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20776641","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399826000006-NWN","pdf_url":"","pub_time":1772168400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399826000006/0001733998-26-000006-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000006/a991pressreleaseq42025.htm","primary":true,"translateUrl":"","linkName":"a991pressreleaseq42025.htm","type":"EX-99.1","id":"NTFILE8RJJAexLbaLiAcgv","market":"us","size":398756},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000006/nwn-20260227.htm","primary":false,"translateUrl":"","linkName":"nwn-20260227.htm","type":"8-K","id":"NTFILE9YQMncgGXTtbhoKS","market":"us","size":51305},{"description":"","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000006/nwn-20260227_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260227_g1.jpg","type":"GRAPHIC","id":"NTFILE3ju1uEJF2h8NfZoi","market":"us","size":57055},{"description":"","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000006/nwn-20260227_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20260227_g2.jpg","type":"GRAPHIC","id":"NTFILECruR8L2XviSkBF91","market":"us","size":38736},{"description":"","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399826000006/nwnholdingshza33.jpg","primary":false,"translateUrl":"","linkName":"nwnholdingshza33.jpg","type":"GRAPHIC","id":"NTFILED8tASiGytEpnWJrG","market":"us","size":57055}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-02-27 13:00","pubTimestamp":1772168400,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20539762","market":"us","labels":[],"media":"sec.gov","original_id":"AN173399825000191-NWN","pdf_url":"","pub_time":1765861200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"NWN","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1733998/000173399825000191/0001733998-25-000191-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-4.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000191/ex41-nwnaturalx28thsupplem.htm","primary":true,"translateUrl":"","linkName":"ex41-nwnaturalx28thsupplem.htm","type":"EX-4.1","id":"NTFILE8qzo5K8HG3mg5YVX","market":"us","size":207219},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000191/nwn-20251216.htm","primary":false,"translateUrl":"","linkName":"nwn-20251216.htm","type":"8-K","id":"NTFILE8cRk5efNgfRowwH2","market":"us","size":45502},{"description":"GRAPHIC","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000191/nwn-20251216_g1.jpg","primary":false,"translateUrl":"","linkName":"nwn-20251216_g1.jpg","type":"GRAPHIC","id":"NTFILE4bA3xkCQTgghfGUw","market":"us","size":57055},{"description":"GRAPHIC","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/73020/000173399825000191/nwn-20251216_g2.jpg","primary":false,"translateUrl":"","linkName":"nwn-20251216_g2.jpg","type":"GRAPHIC","id":"NTFILE56fbkuCTyMqtuiUE","market":"us","size":38736}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2025-12-16 13:00","pubTimestamp":1765861200,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":11,"pageCount":1,"totalSize":215,"code":"91000000","status":"200"}]}}