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|View History: Monthly Download Data (XLS File)                                    
|View History: Monthly                                                              
|View History: Monthly                                                              
|View History:                                                                      
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|Pennsylvania Natural Gas in Underground Storage (Working Gas)  (Million Cubic Feet)
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|Pennsylvania Natural Gas in Underground Storage (Working Gas)  (Million Cubic Feet)
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|Year                                                                                                                              | Jan     | Feb     | Mar     | Apr     | May     | Jun     | Jul     | Aug     | Sep     | Oct     | Nov     | Dec    
|--------------------------------------------------------------------------------------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | ------- | -------
|1990                                                                                                                              | 163,571 | 125,097 | 100,438 | 110,479 | 158,720 | 215,000 | 265,994 | 318,024 | 358,535 | 364,421 | 359,766 | 306,561
|1991                                                                                                                              | 194,349 | 153,061 | 137,579 | 147,399 | 174,145 | 196,678 | 219,025 | 254,779 | 297,531 | 315,601 | 305,179 | 272,103
|1992                                                                                                                              | 201,218 | 144,582 | 93,826  | 103,660 | 140,908 | 188,078 | 222,215 | 264,511 | 306,113 | 331,416 | 332,959 | 288,433
|1993                                                                                                                              | 217,967 | 120,711 | 66,484  | 89,931  | 133,866 | 187,940 | 233,308 | 272,685 | 320,921 | 334,285 | 328,073 | 278,791
|1994                                                                                                                              | 172,190 | 97,587  | 75,470  | 114,979 | 166,013 | 222,300 | 272,668 | 315,887 | 339,424 | 354,731 | 335,483 | 294,393
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|1995                                                                                                                              | 232,561 | 139,624 | 111,977 | 124,790 | 168,112 | 221,731 | 253,442 | 290,185 | 338,021 | 355,887 | 311,749 | 236,656
|1996                                                                                                                              | 157,529 | 94,115  | 56,082  | 76,154  | 120,449 | 181,080 | 252,167 | 302,826 | 340,483 | 357,301 | 323,808 | 299,978
|1997                                                                                                                              | 206,567 | 154,075 | 106,344 | 107,931 | 149,631 | 198,708 | 240,766 | 284,155 | 332,824 | 348,766 | 322,975 | 273,866
|1998                                                                                                                              | 218,385 | 169,183 | 130,152 | 164,419 | 223,346 | 263,662 | 296,115 | 315,617 | 343,281 | 363,210 | 363,481 | 322,019
|1999                                                                                                                              | 233,072 | 176,298 | 131,349 | 157,594 | 203,425 | 238,834 | 266,897 | 304,689 | 346,026 | 365,009 | 360,549 | 292,002
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|2000                                                                                                                              | 180,278 | 113,107 | 101,590 | 108,345 | 161,080 | 204,159 | 254,170 | 286,320 | 333,885 | 360,566 | 338,702 | 242,917
|2001                                                                                                                              | 173,673 | 121,978 | 75,074  | 115,335 | 180,832 | 238,272 | 288,700 | 314,418 | 354,295 | 381,110 | 390,286 | 342,034
|2002                                                                                                                              | 280,339 | 217,451 | 171,827 | 188,145 | 229,912 | 278,882 | 308,642 | 333,244 | 371,025 | 370,511 | 360,243 | 285,154
|2003                                                                                                                              | 165,299 | 89,803  | 81,470  | 96,505  | 166,027 | 226,938 | 266,424 | 304,602 | 356,471 | 383,434 | 379,316 | 327,715
|2004                                                                                                                              | 210,216 | 138,710 | 118,535 | 142,329 | 192,659 | 246,957 | 297,940 | 335,355 | 372,701 | 390,849 | 385,877 | 318,862
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|2005                                                                                                                              | 226,698 | 166,050 | 114,881 | 152,377 | 211,054 | 256,119 | 292,402 | 320,787 | 357,792 | 382,630 | 386,675 | 323,148
|2006                                                                                                                              | 299,294 | 227,557 | 194,486 | 229,527 | 272,233 | 312,070 | 322,908 | 352,377 | 384,163 | 374,913 | 383,864 | 356,056
|2007                                                                                                                              | 288,622 | 174,876 | 143,163 | 151,680 | 218,875 | 269,340 | 310,957 | 338,380 | 370,363 | 390,855 | 378,064 | 314,981
|2008                                                                                                                              | 235,781 | 159,925 | 117,305 | 144,154 | 191,157 | 227,151 | 270,588 | 331,391 | 363,529 | 378,685 | 361,965 | 306,925
|2009                                                                                                                              | 198,828 | 146,493 | 123,933 | 157,544 | 224,492 | 279,618 | 321,259 | 359,108 | 389,503 | 397,044 | 398,846 | 332,499
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|2010                                                                                                                              | 244,226 | 173,279 | 166,753 | 203,542 | 245,777 | 275,897 | 303,246 | 336,197 | 368,863 | 395,184 | 388,413 | 305,257
|2011                                                                                                                              | 217,033 | 153,945 | 128,146 | 157,200 | 200,725 | 239,036 | 269,329 | 307,694 | 356,623 | 387,315 | 394,295 | 360,106
|2012                                                                                                                              | 294,946 | 248,975 | 251,857 | 271,184 | 300,949 | 326,311 | 329,802 | 347,872 | 370,884 | 393,542 | 368,506 | 348,187
|2013                                                                                                                              | 285,135 | 212,915 | 156,274 | 176,594 | 223,996 | 269,659 | 291,175 | 312,646 | 349,981 | 369,166 | 349,937 | 294,767
|2014                                                                                                                              | 198,837 | 110,847 | 64,877  | 90,657  | 153,927 | 209,840 | 248,168 | 292,314 | 342,512 | 382,161 | 366,122 | 336,951
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|2015                                                                                                                              | 253,497 | 161,142 | 113,769 | 140,875 | 203,246 | 254,450 | 275,371 | 310,546 | 349,293 | 380,696 | 386,683 | 375,251
|2016                                                                                                                              | 287,921 | 225,614 | 212,465 | 218,272 | 250,176 | 286,161 | 307,155 | 325,868 | 369,168 | 386,029 | 375,537 | 306,097
|2017                                                                                                                              | 223,786 | 169,647 | 98,921  | 132,374 | 182,486 | 229,177 | 265,651 | 313,223 | 346,462 | 377,860 | 357,365 | 296,277
|2018                                                                                                                              | 206,481 | 152,942 | 92,569  | 91,742  | 141,120 | 187,215 | 226,754 | 255,363 | 309,371 | 339,969 | 313,916 | 278,030
|2019                                                                                                                              | 198,263 | 133,241 | 92,063  | 125,619 | 181,080 | 234,360 | 257,513 | 301,834 | 357,538 | 391,959 | 378,123 | 335,898
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|2020                                                                                                                              | 272,382 | 208,751 | 182,857 | 191,743 | 251,756 | 290,094 | 305,269 | 332,044 | 367,880 | 389,041 | 385,971 | 327,814
|2021                                                                                                                              | 242,998 | 163,131 | 139,465 | 153,794 | 190,011 | 215,934 | 241,611 | 265,460 | 317,436 | 369,056 | 342,704 | 320,295
|2022                                                                                                                              | 206,132 | 132,944 | 105,546 | 114,159 | 165,453 | 208,112 | 230,622 | 259,681 | 321,378 | 362,234 | 363,209 | 305,995
|2023                                                                                                                              | 250,679 | 196,946 | 163,751 | 201,391 | 263,106 | 294,768 | 299,223 | 315,950 | 344,952 | 381,934 | 365,231 | 344,492
|2024                                                                                                                              | 254,383 | 189,003 | 174,502 | 208,049 | 261,842 |         |         |         |         |         |         |        
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|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024