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 "QQQ" #3 U | 42-269-31289 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 5,323–5,337 |
| Plugged | BURNETT, S.B. EST "3B SAND" #W 28A | 42-269-31164 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 5,246–5,300 |
| Cancelled | BURNETT, S. B. ESTATE "UUU" #23 | 42-269-00000 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 2,666–2,726 |
| Plugged | BATEMAN TRUST EST. ACCOUNT NO. 1 #81 | 42-269-30038 | PPC OPER CO LLC | Injection | 1,500 | -- | 5,174–5,238 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #92 | 42-269-31498 | PRIMROSE OPER CO | Injection | 1,500 | -- | 5,050–5,320 |
| Plugged | BATEMAN TRUST EST. ACCOUNT NO. 1 #47 | 42-269-00242 | GRANDFIELD CONSULTING, INC | Injection | 1,500 | -- | 5,164–5,384 |
| Plugged | PEN BRANCH (UPPER STRAWN) UNIT #W 7 | 42-269-31677 | MIOCENE OIL & GAS, LTD. | Injection | 1,500 | -- | 5,285–5,292 |
| Plugged | PEN BRANCH (UPPER STRAWN) UNIT #W 6 | 42-269-31663 | MIOCENE OIL & GAS, LTD. | Injection | 1,500 | -- | 5,356–5,371 |
| Inactive | BURNETT, S. B. ESTATE "D" #D 3 | 42-269-30049 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 5,210–5,514 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 6 | 42-269-30056 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 5,236–5,520 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 7 | 42-269-30059 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 522–5,505 |
| Plugged | BURNETT, S. B. ESTATE "D" #27 | 42-269-31888 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 5,218–5,507 |
| Inactive | BURNETT, S. B. ESTATE "D" #D 28 | 42-269-31822 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 5,226–5,528 |
| Cancelled | BURNETT, S. B. ESTATE "NA" #40 | 42-269-31238 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,500 | -- | 5,230–5,260 |
| Plugged | BURNETT, S. B. ESTATE "NA" #9 | 42-269-30317 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,500 | -- | 5,228–5,244 |
| Inactive | BURNETT, S. B. ESTATE "GG" #33 | 42-269-31597 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 2,790–2,870 |
| Inactive | BURNETT RANCH CO2 FLOOD "PA1" #G244 | 42-269-32053 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 2,850–5,540 |
| Plugged | BATEMAN RANCH BB #7 | 42-269-31280 | RELENTLESS PERMIAN OPER LLC | Injection | 1,500 | -- | 3,650–3,730 |
| Plugged | PEN BRANCH (UPPER STRAWN) UNIT #W 3 | 42-269-31554 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 5,386–5,393 |
| Cancelled | BURNETT, S. B. ESTATE "N" #N 51 | 42-269-00003 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,500 | -- | 2,831–2,874 |
| Plugged | BURNETT, S. B. ESTATE "WM" #18 | 42-269-31152 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 3,920–5,306 |
| Plugged | BURNETT, S. B. ESTATE "C" #C 13 | 42-269-30899 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 5,179–5,315 |
| Plugged | BURNETT RANCH CO2 FLOOD "PA1" #G222 | 42-269-31194 | HIGH RIVER RES OPER, LLC | Injection | 1,500 | -- | 5,170–5,430 |
| Plugged | BURNETT, S. B. ESTATE "AY" #13A | 42-269-30234 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,500 | -- | 5,834–5,852 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #18 | 42-269-00000 | YOUNGBLOOD, C. S. III | UIC | 1,500 | -- | 444–5,208 |
| Cancelled | BATEMAN TRUST EST. ACCOUNT NO. 1 #63 | 42-269-00000 | YOUNGBLOOD, C. S. III | UIC | 1,500 | -- | 5,122–5,137 |
| Plugged | BATEMAN TRUST EST. ACCOUNT NO. 1 #39 | 42-269-00234 | YOUNGBLOOD, C. S. III | UIC | 1,500 | -- | 5,138–5,192 |
| Plugged | BURNETT, S. B. ESTATE "NA" #77 | 42-269-31961 | UNION HILL DRILLING CO | Injection | 1,500 | -- | 2,700–2,760 |
| Plugged | BURNETT, S. B. ESTATE "YA" #Y 18AU | 42-269-30253 | UNION HILL DRILLING CO | Injection | 1,425 | -- | 5,295–5,315 |
| Plugged | BISSETT, NE (STRAWN SAND) #2 | 42-269-31209 | GUNN OIL CO | Injection | 1,400 | -- | 5,364–5,388 |
| Plugged | BURNETT, S.B. EST. "1A/2A SAND" #Y 46A | 42-269-31122 | UNION HILL DRILLING CO | Injection | 1,400 | -- | 4,340–5,220 |
| Plugged | BURNETT, S. B. ESTATE "RRR" #4 | 42-269-31333 | UNION HILL DRILLING CO | Injection | 1,350 | -- | 5,341–5,976 |
| Plugged | PEN BRANCH (UPPER STRAWN) UNIT #301 | 42-269-31530 | MIOCENE OIL & GAS, LTD. | Injection | 1,320 | -- | 5,381–5,400 |
| Plugged | BATEMAN TRUST EST. ACCOUNT NO. 1 #8 | 42-269-00203 | YOUNGBLOOD, C. S. III | Injection | 1,250 | -- | 5,300–5,370 |
| Inactive | BURNETT, S.B. EST. "W" #22 | 42-269-31430 | HIGH RIVER RES OPER, LLC | Injection | 1,240 | -- | 5,140–5,240 |
| Plugged | BURNETT, S. B. ESTATE "D" #D 16 | 42-269-30236 | UNION HILL DRILLING CO | Injection | 1,200 | -- | 5,234–5,288 |
| Plugged | BURNETT, S. B. ESTATE "GG" #23 | 42-269-31196 | UNION HILL DRILLING CO | Injection | 1,200 | -- | 5,234–5,884 |
| Cancelled | BURNETT, S. B. ESTATE "GG" #23U | 42-269-31196 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,200 | -- | 5,234–5,284 |
| Cancelled | BURNETT, S. B. ESTATE "RRR" #25R | 42-269-31869 | UNION HILL DRILLING CO | Injection | 1,125 | -- | 5,327–5,953 |
| Cancelled | BURNETT, S. B. ESTATE "NA" #71 U | 42-269-31930 | UNION HILL DRILLING CO | Injection | 1,125 | -- | 5,252–5,265 |
| Plugged | BURNETT, S. B. ESTATE #Y 10TL | 42-269-31185 | UNION HILL DRILLING CO | Injection | 1,100 | -- | 5,557–5,584 |
| Plugged | PEN BRANCH (UPPER STRAWN) UNIT #503 | 42-269-31668 | MIOCENE OIL & GAS, LTD. | Injection | 1,080 | -- | 5,302–5,314 |
| Plugged | BURNETT RANCH CO2 FLOOD "PA1" #N 80 | 42-269-31912 | UNION HILL DRILLING CO | Injection | 1,050 | -- | 5,282–5,299 |
| Plugged | BURNETT, S. B. ESTATE "WM" #W 9M | 42-269-31072 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,132–5,140 |
| Plugged | NIBLO "48" #2A | 42-269-31962 | CLEAR FORK, INC | Injection | 1,000 | -- | 2,564–3,034 |
| Plugged | BURNETT, S. B. ESTATE #Y 13 L | 42-269-30243 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,342–5,354 |
| Plugged | BURNETT, S. B. ESTATE "W" #40A | 42-269-31359 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,196–5,224 |
| Plugged | ORSBORN UNIT #9 | 42-269-00107 | CONOCO INC | Injection | 1,000 | -- | 4,873–4,886 |
| Plugged | BURNETT, S. B. ESTATE "W" #W 3A | 42-269-30123 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,196–5,217 |
| Plugged | ORSBORN UNIT #8 | 42-269-00106 | CHOLLA PETRO, INC | Injection | 1,000 | -- | 4,824–5,090 |
| Plugged | BURNETT, S. B. ESTATE "AAA" #10 | 42-269-31145 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 3,720–3,727 |
| Plugged | HARDWICK, G. W. #16 | 42-269-31774 | WESTPORT OIL AND GAS CO, LP | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | HOWELL, G. L. #8 | 42-269-31788 | CONOCO INC | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | BURNETT, S. B. ESTATE "N" #51 | 42-269-31096 | UNION HILL DRILLING CO | Disposal | 1,000 | -- | 2,937–2,980 |
| Plugged | HARDWICK, G. W. #17 | 42-269-31772 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | HARDWICK, G. W. #15 | 42-269-31771 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | BURNETT, S. B. ESTATE "UUU" #13 | 42-269-31608 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 2,628–2,670 |
| Plugged | BURNETT, S. B. ESTATE "W" #66 | 42-269-32037 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,220–5,360 |
| Plugged | HARDWICK, G. W. #13 | 42-269-31777 | CONOCO INC | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | BURNETT, S. B. ESTATE "W" #38 | 42-269-31317 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,139–5,169 |
| Plugged | BURNETT, S. B. ESTATE "RRR" #18 | 42-269-31654 | HIGH RIVER RES OPER, LLC | Injection | 1,000 | -- | 5,800–5,920 |
| Cancelled | ROSS, W. R. #6NO | 42-269-31642 | TERRA RES, INC | Injection | 1,000 | -- | 5,334–5,354 |
| Plugged | BURNETT, S. B. ESTATE "W" #W 53A | 42-269-31573 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,220–5,275 |
| Plugged | BURNETT, S. B. ESTATE "XA" #5A | 42-269-30214 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,148–5,154 |
| Plugged | BURNETT, S. B. ESTATE "C" #C 7 | 42-269-30048 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,350–5,375 |
| Plugged | BURNETT, S. B. ESTATE "C" #C 4W | 42-269-30039 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,234–5,278 |
| Plugged | BURNETT, S. B. ESTATE "W" #16 | 42-269-31358 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,148–5,169 |
| Plugged | ROSS, W. R. "A" #6 | 42-269-00300 | ARMOR PETRO, INC | Injection | 1,000 | -- | 5,170–5,260 |
| Plugged | MASTERSON PN #6 | 42-269-32725 | GUNN OIL CO | Disposal | 1,000 | -- | 3,912–4,310 |
| Plugged | FOSTER #1A | 42-269-32665 | SCHALK OIL CO, INC | Injection | 1,000 | -- | 3,400–3,998 |
| Plugged | ROSS, W. R. "A" #10 | 42-269-30201 | ARMOR PETRO, INC | Injection | 1,000 | -- | 5,160–5,210 |
| Plugged | PITCHFORK-MAVERICK "B-7" BATTERY #7 | 42-269-31053 | MEDDERS OIL CO, INC | Injection | 1,000 | -- | 3,700–3,910 |
| Plugged | ORSBORN UNIT #34 | 42-269-31738 | CHOLLA PETRO, INC | Injection | 1,000 | -- | 4,800–5,200 |
| Plugged | ROSS, W. R. "A" #13 | 42-269-32014 | ARMOR PETRO, INC | Injection | 1,000 | -- | 5,160–5,220 |
| Cancelled | ROSS, W. R. #6L | 42-269-31642 | PACIFIC ENTERPRISES OIL CO.(USA) | Injection | 1,000 | -- | 5,334–5,354 |
| Plugged | HAVINS, C. "A" #3 | 42-269-30797 | BASS ENTERPRISES PROD CO | Disposal | 1,000 | -- | 4,026–4,200 |
| Plugged | ORSBORN UNIT #20 | 42-269-00000 | ENERVEST OPER, L.L.C | Injection | 1,000 | -- | 4,784–4,884 |
| Plugged | ORSBORN UNIT #21 | 42-269-31306 | CHOLLA PETRO, INC | Injection | 1,000 | -- | 4,832–5,170 |
| Cancelled | ORSBORN UNIT #22 | 42-269-31307 | BELCO ENGY CORP | Injection | 1,000 | -- | 4,850–4,900 |
| Plugged | ROSS, W. R. "A" #14 | 42-269-32123 | ARMOR PETRO, INC | Injection | 1,000 | -- | 5,160–5,184 |
| Cancelled | BURNETT, S. B. ESTATE "RRR" #26 | 42-269-31867 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,934–5,961 |
| Plugged | ORSBORN UNIT #19 | 42-269-00000 | ENERVEST OPER, L.L.C | Injection | 1,000 | -- | 4,883–4,888 |
| Plugged | MASTERSON, BEN & TOM #2D | 42-269-00044 | FREEMAN EXPL. & PROD. CO., INC | Disposal | 1,000 | -- | 1,550–2,100 |
| Plugged | BURNETT, S. B. ESTATE "W" #W 11A | 42-269-30193 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,141–5,148 |
| Plugged | BURNETT, S. B. ESTATE "WA" #26 | 42-269-31128 | UNION HILL DRILLING CO | Injection | 1,000 | -- | 5,123–5,150 |
| Plugged | ORSBORN UNIT #11 | 42-269-00111 | ENERVEST OPER, L.L.C | Injection | 1,000 | -- | 4,838–4,858 |
| Plugged | ORSBORN UNIT #39 | 42-269-31785 | ENERVEST OPER, L.L.C | Injection | 1,000 | -- | 4,800–5,100 |
| Plugged | ORSBORN #37 | 42-269-31773 | CHOLLA PETRO, INC | Injection | 1,000 | -- | 4,800–5,100 |
| Cancelled | BURNETT, S. B. ESTATE "RRR" #50 | 42-269-00000 | UNION HILL DRILLING CO | Injection | 975 | -- | 5,356–5,990 |
| Plugged | BURNETT, S. B. ESTATE NORTH #Y 26A | 42-269-30288 | UNION HILL DRILLING CO | Injection | 975 | -- | 5,224–5,235 |
| Plugged | ORSBORN UNIT #25 | 42-269-31393 | WESTPORT OIL AND GAS CO, LP | Injection | 900 | -- | 4,800–5,100 |
| Plugged | ORSBORN UNIT #24 | 42-269-31395 | CHOLLA PETRO, INC | Injection | 900 | -- | 4,800–5,100 |
| Inactive | BURNETT RANCH CO2 FLOOD "PA1" #Q317 | 42-269-31882 | HIGH RIVER RES OPER, LLC | Injection | 900 | -- | 5,270–5,285 |
| Cancelled | BURNETT, S. B. ESTATE "QQQ" #15 | 42-269-00000 | UNION HILL DRILLING CO | Injection | 900 | -- | 5,252–5,270 |
| Cancelled | BURNETT, S. B. ESTATE "NA" #N 78A | 42-269-00000 | UNION HILL DRILLING CO | Injection | 900 | -- | 5,448–5,510 |
| Cancelled | BURNETT, S. B. ESTATE "N" #81 | 42-269-31897 | UNION HILL DRILLING CO | Injection | 900 | -- | 5,285–5,300 |
| Cancelled | BURNETT RANCH CO2 FLOOD "PA1" #Y 53A | 42-269-31275 | UNION HILL DRILLING CO | Injection | 900 | -- | 5,343–5,357 |
| Plugged | ORSBORN UNIT #14 | 42-269-00081 | CHOLLA PETRO, INC | Injection | 900 | -- | 4,804–5,069 |
| Plugged | JOHNSON, FANNIE MAE #2 | 42-269-32197 | GUNN OIL CO | Injection | 850 | -- | 5,220–5,310 |
| Plugged | BURNETT, S. B. ESTATE #N 23 | 42-269-30381 | UNION HILL DRILLING CO | Injection | 825 | -- | 5,368–5,400 |
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.