Annual Report Mileage for Gas Distribution Systems
April 1, 2026
Annual Report Mileage for Gas Distribution Systems
| YEAR | NUMBER OF RECORDS | TOTAL DISTRIBUTION MAIN AND ESTIMATED SERVICE MILEAGE | DISTRIBUTION MAIN MILEAGE | DISTRIBUTION NUMBER OF SERVICES | DISTRIBUTION ESTIMATED SERVICE MILEAGE |
|---|---|---|---|---|---|
2025 | 1,372 | 2,391,826 | 1,389,412 | 73,011,954 | 1,002,414 |
| 2024 | 1,437 | 2,370,773 | 1,378,863 | 72,699,364 | 991,910 |
| 2023 | 1,441 | 2,350,201 | 1,367,875 | 72,178,437 | 982,327 |
| 2022 | 1,449 | 2,321,825 | 1,356,497 | 71,558,916 | 965,329 |
| 2021 | 1,444 | 2,300,080 | 1,341,301 | 70,978,426 | 958,779 |
| 2020 | 1,459 | 2,284,732 | 1,329,866 | 70,375,960 | 954,866 |
| 2019 | 1,479 | 2,264,537 | 1,319,490 | 69,779,102 | 945,047 |
| 2018 | 1,490 | 2,239,224 | 1,308,242 | 69,291,901 | 930,982 |
| 2017 | 1,499 | 2,226,200 | 1,297,259 | 68,846,517 | 928,941 |
| 2016 | 1,487 | 2,211,525 | 1,285,769 | 68,308,151 | 925,756 |
| 2015 | 1,491 | 2,190,258 | 1,275,553 | 67,927,034 | 914,705 |
| 2014 | 1,494 | 2,169,375 | 1,266,456 | 67,298,696 | 902,919 |
| 2013 | 1,492 | 2,149,819 | 1,255,451 | 67,159,635 | 894,369 |
| 2012 | 1,477 | 2,138,000 | 1,247,552 | 66,690,485 | 890,448 |
| 2011 | 1,462 | 2,121,355 | 1,239,302 | 66,477,215 | 882,052 |
| 2010 | 1,437 | 2,102,483 | 1,229,946 | 65,926,315 | 872,537 |
| 2009 | 1,449 | 2,086,689 | 1,220,539 | 65,587,804 | 866,150 |
| 2008 | 1,476 | 2,075,191 | 1,210,032 | 65,389,508 | 865,159 |
| 2007 | 1,502 | 2,025,731 | 1,203,330 | 64,864,779 | 822,401 |
| 2006 | 1,518 | 2,022,474 | 1,188,085 | 64,150,764 | 834,389 |
| 2005 | 1,522 | 1,962,351 | 1,165,020 | 63,003,957 | 797,331 |
| 2004 | 1,523 | 1,925,748 | 1,142,297 | 61,900,440 | 783,451 |
| 2003 | 1,449 | 1,872,748 | 1,107,553 | 60,180,530 | 765,194 |
| 2002 | 1,442 | 1,899,845 | 1,136,473 | 59,858,465 | 763,373 |
| 2001 | 1,450 | 1,838,359 | 1,101,485 | 58,420,403 | 736,874 |
| 2000 | 1,453 | 1,788,100 | 1,050,802 | 57,690,459 | 737,298 |
| 1999 | 1,472 | 1,764,724 | 1,035,946 | 56,538,415 | 728,778 |
| 1998 | 1,460 | 1,818,184 | 1,040,765 | 55,755,293 | 777,420 |
| 1997 | 1,473 | 1,734,443 | 1,002,829 | 54,869,223 | 731,614 |
| 1996 | 1,490 | 1,694,925 | 976,945 | 52,611,109 | 717,980 |
| 1995 | 1,524 | 1,700,449 | 1,003,910 | 55,521,714 | 696,539 |
| 1994 | 1,586 | 1,739,152 | 1,002,669 | 56,816,569 | 736,483 |
| 1993 | 1,572 | 1,612,973 | 950,984 | 51,961,313 | 661,988 |
| 1992 | 1,545 | 1,536,382 | 891,984 | 50,103,974 | 644,398 |
| 1991 | 1,569 | 1,560,633 | 890,876 | 52,665,539 | 669,757 |
| 1990 | 1,504 | 1,546,955 | 945,964 | 48,755,074 | 600,991 |
| 1989 | 1,558 | 1,417,499 | 838,237 | 47,591,804 | 579,262 |
| 1988 | 1,590 | 1,467,704 | 866,639 | 48,246,973 | 601,065 |
| 1987 | 1,542 | 1,352,087 | 802,335 | 45,848,965 | 549,752 |
| 1986 | 1,562 | 1,351,985 | 780,401 | 45,036,343 | 571,584 |
| 1985 | 1,610 | 1,315,017 | 784,852 | 44,309,528 | 530,165 |
| 1984 | 1,538 | 1,229,485 | 750,168 | 41,258,268 | 479,317 |
Note:
A. After 2009 information is from Part B.4 Miles of Main and Number of Services by Decade of Installation on Form PHMSA F7100.1-1(6-2023)
B. 2009-2004 information is from Part B.4 Miles of Main and Number of Services by Decade of Installation on Form PHMSA F7100.1-1(12-05)
C. Prior 2004 information is from Part B.1 General System Description on Form RSPA F 7100.1-1(11-85)
D. Historical totals may change as PHMSA receives supplemental information
Last updated: Wednesday, April 8, 2026