Saltwater Disposal Wells in King County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
154
Permitted Capacity
478,995 bbl/d
Injected 12mo (thru 2025-06)
15.8M bbl
UIC Permits All Time
537
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Plugged | BURNETT, S. B. ESTATE "D" #16D | 42-269-10021 | CITATION OIL & GAS CORP | Injection | 800 | -- | 4,377–4,518 |
| Plugged | BURNETT, S. B. ESTATE "C" #5 | 42-269-00381 | CITATION OIL & GAS CORP | Injection | 800 | -- | 5,287–5,327 |
| Inactive | TUMBLEWEED FOSTER UNIT #8 | 42-269-31616 | RIDGLEA ENGY I, LLC | Injection | 800 | -- | 3,802–3,820 |
| Plugged | BURNETT, S. B. ESTATE "GG" #23 | 42-269-31196 | UNION HILL DRILLING CO | Injection | 800 | -- | 5,868–5,884 |
| Inactive | BURNETT, S. B. ESTATE "RRR" #16 | 42-269-31577 | HIGH RIVER RES OPER, LLC | Injection | 750 | -- | 5,310–5,926 |
| Plugged | BURNETT, S. B. ESTATE #Y 49A | 42-269-31224 | UNION HILL DRILLING CO | Injection | 750 | -- | 5,296–5,307 |
| Plugged | MASTERSON RANCH "A" #2 | 42-269-31841 | CLEAR FORK, INC | Injection | 750 | -- | 4,014–4,370 |
| Inactive | SIMPSON #1 | 42-269-32060 | CREED OPER CO., LLC | Injection | 750 | -- | 3,310–3,312 |
| Inactive | SIMPSON #11A | 42-269-32323 | CREED OPER CO., LLC | Injection | 750 | -- | 3,314–3,325 |
| Inactive | SIMPSON #10 | 42-269-32303 | CREED OPER CO., LLC | Injection | 750 | -- | 3,311–3,313 |
| Plugged | FOSTER #1 | 42-269-31874 | MIDLAND OIL AND GAS, INC | Injection | 750 | -- | 3,946–3,962 |
| Plugged | BURNETT, S. B. ESTATE "YA" #Y 56A | 42-269-31423 | UNION HILL DRILLING CO | Injection | 750 | -- | 4,100–5,268 |
| Plugged | JOHNSON, FANNIE MAE #1R | 42-269-32083 | GUNN OIL CO | Injection | 750 | -- | 5,118–5,168 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #59 | 42-269-00000 | HUMBLE OIL & REFINING CO. | UIC | 700 | -- | 5,140–5,207 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 11W | 42-269-30079 | UNION HILL DRILLING CO | Injection | 700 | -- | 5,209–5,256 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 14W | 42-269-30085 | UNION HILL DRILLING CO | Injection | 700 | -- | 5,244–5,258 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 17W | 42-269-30259 | UNION HILL DRILLING CO | Injection | 700 | -- | 5,260–5,295 |
| Plugged | BURNETT, S. B. ESTATE "NA" #19 | 42-269-30352 | UNION HILL DRILLING CO | Injection | 675 | -- | 5,196–5,214 |
| Plugged | BURNETT, S. B. ESTATE "N" #27U | 42-269-30389 | UNION HILL DRILLING CO | Injection | 675 | -- | 5,262–5,278 |
| Plugged | BURNETT, S. B. ESTATE "NA" #10 U | 42-269-30331 | UNION HILL DRILLING CO | Injection | 675 | -- | 5,202–5,215 |
| Plugged | BURNETT, S. B. ESTATE "GG" #14 | 42-269-30988 | UNION HILL DRILLING CO | Injection | 600 | -- | 5,443–5,450 |
| Plugged | BURNETT RANCH CO2 FLOOD "PA1" #N 27 | 42-269-30389 | UNION HILL DRILLING CO | Injection | 600 | -- | 2,735–2,810 |
| Plugged | BURNETT, S. B. ESTATE "W" #2 W | 42-269-30106 | UNION HILL DRILLING CO | Injection | 600 | -- | 5,193–5,214 |
| Plugged | ORSBORN #22 | 42-269-31307 | WESTPORT OIL AND GAS CO, LP | Injection | 600 | -- | 4,850–4,900 |
| Plugged | BURNETT, S. B. ESTATE "W" #W 6A | 42-269-30141 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 600 | -- | 5,073–5,092 |
| Plugged | BURNETT, S. B. ESTATE "W" #4 W | 42-269-30122 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 600 | -- | 5,152–5,166 |
| Plugged | BURNETT, S. B. ESTATE "W" #10 | 42-269-30220 | UNION HILL DRILLING CO | Injection | 600 | -- | 5,207–5,218 |
| Plugged | SPRINGER #7 | 42-269-31922 | CLEAR FORK, INC | Injection | 600 | -- | 3,470–3,485 |
| Plugged | GIBSON #3 | 42-269-30952 | GRASHA, MATTHEW P | Disposal | 600 | -- | 4,630–4,972 |
| Plugged | BURNETT, S. B. ESTATE "W" #7 W | 42-269-30132 | UNION HILL DRILLING CO | Injection | 600 | -- | 5,150–5,165 |
| Plugged | BURNETT, S. B. ESTATE "GG" #3 | 42-269-30413 | UNION HILL DRILLING CO | Injection | 600 | -- | 5,274–5,292 |
| Inactive | NIBLO, SYDNEY #10 | 42-269-31954 | SOJOURNER DRLG. CORP | Injection | 500 | -- | 2,992–2,995 |
| Plugged | TUMBLEWEED SOUTH UNIT #6 | 42-269-31816 | MIDLAND OIL AND GAS, INC | Injection | 500 | -- | 3,750–3,759 |
| Plugged | BURNETT, S.B. EST. "1A/2A SAND" #Y 23 | 42-269-31625 | UNION HILL DRILLING CO | Injection | 500 | -- | 5,190–5,269 |
| Plugged | PITCHFORK "3" #6 | 42-269-32018 | SAUDER MANAGEMENT CO | Injection | 500 | -- | 3,717–3,736 |
| Plugged | BISSETT, NE (STRAWN LIME) #12 | 42-269-30996 | GUNN OIL CO | Injection | 500 | -- | 5,340–5,347 |
| Plugged | BISSETT, NE (STRAWN LIME) #2 | 42-269-30969 | GUNN OIL CO | Injection | 500 | -- | 5,106–5,365 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 18W | 42-269-03015 | UNION HILL DRILLING CO | Injection | 500 | -- | 5,212–5,275 |
| Plugged | TUMBLEWEED SOUTH UNIT #1 | 42-269-31586 | MIDLAND OIL AND GAS, INC | Injection | 500 | -- | 3,744–3,754 |
| Plugged | BURNETT, S. B. ESTATE "BBBB" #4 | 42-269-10011 | HIGH RIVER RES OPER, LLC | Injection | 500 | -- | 5,963–5,975 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 19W | 42-269-30405 | UNION HILL DRILLING CO | Injection | 500 | -- | 5,270–5,300 |
| Plugged | BURNETT, S. B. ESTATE "NA" #23W | 42-269-30365 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 500 | -- | 2,693–2,696 |
| Cancelled | PARRAMORE "74" #10 | 42-269-31348 | MENASCO, J | Injection | 500 | -- | 3,107–3,131 |
| Plugged | BURNETT, S. B. ESTATE "N" #25 | 42-269-30384 | UNION HILL DRILLING CO | Injection | 500 | -- | 2,746–2,780 |
| Plugged | GIBSON, J. J. "A" #4 | 42-269-31486 | GUNN OIL CO | Injection | 500 | -- | 4,429–4,504 |
| Plugged | BURNETT, S. B. ESTATE "GG" #30 | 42-269-31476 | UNION HILL DRILLING CO | Injection | 500 | -- | 2,780–2,792 |
| Plugged | MCELROY, O. T. #1D | 42-269-30831 | HOLDEN ENGY CORP | Disposal | 500 | -- | 2,647–2,678 |
| Cancelled | MASTERSON RANCH "A" #6 | 42-269-31852 | CLEAR FORK, INC | Disposal | 500 | -- | 2,712–2,740 |
| Plugged | ALEXANDER #1 | 42-269-30398 | S.B. STREET OPER, INC | Injection | 500 | -- | 3,035–3,070 |
| Plugged | BURNETT, S. B. ESTATE "RRR" #12L | 42-269-31556 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 500 | -- | 5,876–5,881 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #26 | 42-269-00000 | YOUNGBLOOD, C. S. III | UIC | 500 | -- | 5,310–5,319 |
| Plugged | BURNETT, S. B. ESTATE "NA" #49 | 42-269-31242 | UNION HILL DRILLING CO | Injection | 500 | -- | 2,741–2,761 |
| Plugged | BURNETT, S. B. ESTATE "NA" #11 | 42-269-30342 | UNION HILL DRILLING CO | Injection | 450 | -- | 5,278–5,290 |
| Plugged | BURNETT, S. B. ESTATE "D" #13 | 42-269-00389 | CITATION OIL & GAS CORP | Injection | 450 | -- | 5,315–5,330 |
| Plugged | PITCHFORK-MAVERICK "B-7" BATTERY #11 | 42-269-31156 | MEDDERS OIL CO, INC | Injection | 400 | -- | 3,750–3,765 |
| Plugged | PARRAMORE, J. H. "B" #3 | 42-269-00168 | HELMCAMP, INC | Injection | 400 | -- | 3,140–3,144 |
| Plugged | BURNETT, S. B. ESTATE "NA" #9 | 42-269-30317 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 400 | -- | 2,628–2,645 |
| Plugged | PITCHFORK-MAVERICK "B" #2 | 42-269-30931 | MEDDERS OIL CO, INC | Injection | 400 | -- | 3,693–3,702 |
| Plugged | BURNETT, S. B. ESTATE "NA" #15W | 42-269-30348 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 400 | -- | 2,637–2,646 |
| Plugged | BURNETT, S. B. ESTATE "NA" #16 | 42-269-30347 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 400 | -- | 2,644–2,670 |
| Plugged | PARRAMORE #3 | 42-269-31754 | SMITH PIPE OF ABILENE | Injection | 400 | -- | 3,072–3,078 |
| Plugged | SPRINGER 210 #2 | 42-269-31931 | SAUDER MANAGEMENT CO | Injection | 400 | -- | 3,738–3,756 |
| Plugged | PITCHFORK-MAVERICK "B" #1 | 42-269-30888 | MEDDERS OIL CO, INC | Injection | 400 | -- | 3,698–3,702 |
| Plugged | PARRAMORE, J. H. "B" #2 | 42-269-00167 | HELMCAMP, INC | Injection | 300 | -- | 3,141–3,156 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #24 | 42-269-00000 | HUMBLE OIL & REFINING CO. | UIC | 300 | -- | 5,320–5,325 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #58 | 42-269-00000 | HUMBLE OIL & REFINING CO. | UIC | 300 | -- | 5,235–5,244 |
| Cancelled | PARRAMORE "D" #1 | 42-269-00000 | GRIGGS OIL, INC | UIC | 300 | -- | 3,147–3,174 |
| Plugged | MASTERSON, BEN & TOM #7 | 42-269-10242 | FREEMAN EXPL. & PROD. CO., INC | Injection | 300 | -- | 4,107–4,120 |
| Plugged | BURNETT, S. B. ESTATE "GG" #3 | 42-269-30413 | UNION HILL DRILLING CO | Injection | 300 | -- | 5,490–5,496 |
| Plugged | BURNETT, S. B. ESTATE "RRR" #12U | 42-269-31556 | HIGH RIVER RES OPER, LLC | Injection | 300 | -- | 5,384–5,412 |
| Plugged | PARRAMORE "A" #3D | 42-269-31175 | MENASCO, J | Disposal | 300 | -- | 3,146–3,166 |
| Inactive | PARRAMORE "74" #1 | 42-269-31146 | WILLIAMS, A. OIL | Injection | 300 | -- | 3,050–3,132 |
| Plugged | FOSTER #2A | 42-269-31972 | MIDLAND OIL AND GAS, INC | Injection | 250 | -- | 3,958–3,968 |
| Plugged | ALEXANDER ESTATE "B" #4D | 42-269-30027 | MENASCO, J | Disposal | 250 | -- | 2,925–2,943 |
| Plugged | NIBLO 73 "C" #1 | 42-269-31871 | CLEAR FORK, INC | Injection | 250 | -- | 3,126–3,129 |
| Cancelled | NIBLO 73 "A" #2 | 42-269-31377 | CLEAR FORK, INC | Injection | 250 | -- | 3,149–3,162 |
| Plugged | NIBLO 73 "A" #1 | 42-269-31321 | CLEAR FORK, INC | Injection | 250 | -- | 3,126–3,129 |
| Inactive | PARRAMORE "74" #2 | 42-269-31162 | WILLIAMS, A. OIL | Injection | 250 | -- | 3,097–3,110 |
| Plugged | ALEXANDER #5308 | 42-269-30834 | S.B. STREET OPER, INC | Injection | 240 | -- | 2,999–3,012 |
| Plugged | PITCHFORK LAND & CATTLE CO. #F 2 | 42-269-31278 | MEDDERS OIL CO, INC | Injection | 200 | -- | 3,706–3,718 |
| Plugged | ROSS RANCH #4 | 42-269-30399 | TAUBERT, STEED & GUNN | Injection | 200 | -- | 2,702–2,708 |
| Plugged | PITCHFORK-MAVERICK "B-7" BATTERY #14 | 42-269-31290 | MEDDERS OIL CO, INC | Injection | 200 | -- | 3,738–3,749 |
| Plugged | SIMPSON #1 | 42-269-31177 | TWO WAY OIL CO. | Injection | 200 | -- | 3,361–3,368 |
| Plugged | BURNETT, S. B. ESTATE "W" #W 13A | 42-269-30231 | UNION HILL DRILLING CO | Injection | 200 | -- | 5,142–5,158 |
| Plugged | PITCHFORK-MAVERICK "B-7" BATTERY #12 | 42-269-31184 | MEDDERS OIL CO, INC | Injection | 200 | -- | 3,753–3,766 |
| Plugged | BURNETT, S. B. ESTATE "W" #5 W | 42-269-30128 | UNION HILL DRILLING CO | Injection | 200 | -- | 5,270–5,300 |
| Plugged | BATEMAN RANCH "B" #C 1 | 42-269-31282 | DELWINTEX OIL & GAS PROP., INC | Disposal | 200 | -- | 2,730–2,750 |
| Plugged | PARRAMORE, J. H. #542 | 42-269-30409 | BOLIN, D. H. ESTATE | Disposal | 150 | -- | 2,610–2,720 |
| Plugged | ALEXANDER ESTATE "B" #2D | 42-269-00284 | MENASCO, J | Disposal | 150 | -- | 3,025–3,036 |
| Plugged | CAROTHERS, G. C. #2 | 42-269-31000 | LECLAIR OPER CO., INC | Injection | 120 | -- | 3,589–3,594 |
| Plugged | CAROTHERS, G. C. #4 | 42-269-31066 | SRG OIL CORP | Injection | 120 | -- | 3,562–3,566 |
| Plugged | CAROTHERS, G. C. #5 | 42-269-31026 | LECLAIR OPER CO., INC | Injection | 120 | -- | 3,505–3,510 |
| Plugged | BACON, T. #6 | 42-269-31365 | PARAGON OIL & GAS, LLC | Injection | 110 | -- | 3,253–3,261 |
| Plugged | SIMPSON #2 | 42-269-32171 | LECLAIR OPER CO., INC | Injection | 100 | -- | 3,267–3,270 |
| Plugged | RATLIFF #2 | 42-269-31059 | DOODLE-BUG, INC | Disposal | 100 | -- | 4,315–4,380 |
| Plugged | BATEMAN #5 | 42-269-31247 | DELWINTEX OIL & GAS PROP., INC | Disposal | 100 | -- | 2,730–2,740 |
| Plugged | BURNETT, S. B. ESTATE #U318 | 42-269-31895 | UNION HILL DRILLING CO | Injection | 0 | -- | 5,425–5,445 |
| Plugged | BURNETT, S. B. ESTATE "UUU" #2 | 42-269-31229 | UNION HILL DRILLING CO | Injection | 0 | -- | 2,724 |
| Plugged | BURNETT, S. B. ESTATE "Y" #24 | 42-269-31596 | UNION HILL DRILLING CO | Injection | 0 | -- | 5,300 |
| Cancelled | BURNETT, S. B. ESTATE "Y" #Y 5 | 42-269-00000 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 0 | -- | 5,293 |
Source: RRC UIC well master and H-10 injection filings. H-10s are annual filings on staggered anniversaries — injected volumes shown through 2025-06, the newest month with complete reporting; recent months are never estimated.