Saltwater Disposal Wells in Cochran County
Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.
Active Wells
956
Permitted Capacity
1.2M bbl/d
Injected 12mo (thru 2025-06)
30.7M bbl
UIC Permits All Time
2,112
| STATUS | LEASE / WELL | API | OPERATOR | TYPE | PERMITTED BBL/D | INJECTED 12MO | ZONE (FT) |
|---|---|---|---|---|---|---|---|
| Inactive | BOYD MALLET UNIT #79 | 42-079-30047 | EXTEX OPER CO | Injection | 1,000 | -- | 4,800–5,165 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #26W | 42-079-01447 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,785–4,832 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #53 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,037–5,048 |
| Plugged | MALLET UNIT #129W | 42-079-01472 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Plugged | DEAN UNIT "B" #89W | 42-079-01848 | TEXACO INC | Injection | 1,000 | -- | 5,051–5,065 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #41 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,060–5,070 |
| Plugged | DEAN UNIT "B" #71W | 42-079-01829 | TEXACO INC | Injection | 1,000 | -- | 5,037–5,048 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #36 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,001–5,069 |
| Plugged | DEAN UNIT "B" #60W | 42-079-01858 | TEXACO INC | Injection | 1,000 | -- | 5,056–5,070 |
| Plugged | DEAN UNIT "B" #85W | 42-079-10031 | TEXACO INC | Injection | 1,000 | -- | 5,047–5,061 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #100A | 42-079-32477 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,750–4,900 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #31 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,002–5,090 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #23 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,985–5,040 |
| Plugged | DEAN UNIT "B" #51W | 42-079-01819 | TEXACO INC | Injection | 1,000 | -- | 5,049–5,063 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #17 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,983–5,045 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #19 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,991–5,047 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #96W | 42-079-30076 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,630–4,840 |
| Plugged | DEAN UNIT "B" #113W | 42-079-01847 | TEXACO INC | Injection | 1,000 | -- | 540–50,640 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #179W | 42-079-01633 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,560–5,000 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #15 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,980–5,057 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #35 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,026–5,097 |
| Plugged | DUGGAN SLAUGHTER UNIT #17AW | 42-079-01156 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 5,057–5,084 |
| Plugged | MALLET UNIT #114W | 42-079-01492 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Plugged | DEAN UNIT "B" #91W | 42-079-00426 | TEXACO INC | Injection | 1,000 | -- | 5,059–5,069 |
| Cancelled | ROWLAND UNIT #1 | 42-079-32544 | WALKING X OIL CO | Disposal | 1,000 | -- | 4,250–4,950 |
| Plugged | BONANZA (SAN ANDRES) UNIT #1804 | 42-079-31814 | MERIDIAN EXPL CORP | Injection | 1,000 | -- | 4,804–5,002 |
| Cancelled | DEAN, C.S. "H" #5 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,005–5,032 |
| Plugged | SLAUGHTER ESTATE #1 | 42-079-31198 | UNITED CO | Injection | 1,000 | -- | 4,750–4,988 |
| Plugged | CONOCO-DEAN UNIT #89W | 42-079-30037 | CONOCO INC | Injection | 1,000 | -- | 4,949–5,016 |
| Cancelled | DEAN, C.S. "H" #1 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,994–5,036 |
| Plugged | CONOCO-DEAN UNIT #82W | 42-079-01216 | CONOCO INC | Injection | 1,000 | -- | 5,005–5,063 |
| Plugged | CONOCO-DEAN UNIT #107W | 42-079-30551 | LEGACY RESERVES OPER LP | Injection | 1,000 | -- | 4,948–5,026 |
| Plugged | MALLET UNIT #112W | 42-079-01462 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Cancelled | DEAN, C.S. "H" #11 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,997–5,026 |
| Inactive | DEAN "I" #23 | 42-079-32629 | EXTEX OPER CO | Injection | 1,000 | -- | 4,900–5,200 |
| Plugged | CONOCO-DEAN UNIT #59W | 42-079-00488 | CONOCO INC | Injection | 1,000 | -- | 4,998–5,070 |
| Plugged | CONOCO-DEAN UNIT #63W | 42-079-00480 | CONOCO INC | Injection | 1,000 | -- | 4,963–5,032 |
| Plugged | BONANZA (SAN ANDRES) UNIT #402 | 42-079-31743 | STELLER ENGY & INVESTMENT CORP | Injection | 1,000 | -- | 4,758–4,960 |
| Inactive | DEAN "I" #24 | 42-079-32630 | EXTEX OPER CO | Injection | 1,000 | -- | 4,900–5,200 |
| Plugged | MALLET UNIT #1115W | 42-079-30502 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Plugged | CONOCO-DEAN UNIT #43W | 42-079-00472 | CONOCO INC | Injection | 1,000 | -- | 4,967–5,058 |
| Cancelled | DEAN, C. S. "A" #99W | 42-079-02061 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,950–5,050 |
| Plugged | CONOCO-DEAN UNIT #41W | 42-079-00476 | CONOCO INC | Injection | 1,000 | -- | 4,922–4,982 |
| Plugged | CONOCO-DEAN UNIT #30W | 42-079-00496 | CONOCO INC | Injection | 1,000 | -- | 5,000–5,040 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #86W | 42-079-01438 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,797–4,845 |
| Plugged | CONOCO-DEAN UNIT #32W | 42-079-02502 | EXTEX OPER CO | Injection | 1,000 | -- | 4,970–5,108 |
| Plugged | CONOCO-DEAN UNIT #40 | 42-079-00482 | LEGACY RESERVES OPER LP | Injection | 1,000 | -- | 4,940–4,983 |
| Plugged | DEAN, C. S. "A" #39 | 42-079-02091 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,978–5,081 |
| Plugged | CONOCO-DEAN UNIT #51W | 42-079-02495 | CONOCO INC | Injection | 1,000 | -- | 4,993–5,094 |
| Plugged | DEAN, C. S. "A" #35 | 42-079-30030 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,922–5,023 |
| Plugged | DEAN UNIT "B" #2W | 42-079-00261 | TEXACO INC | Injection | 1,000 | -- | 4,994–5,036 |
| Plugged | DEAN, C. S. "A" #92 | 42-079-20034 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,009–5,059 |
| Plugged | DEAN, C. S. "A" #96W | 42-079-02088 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,950–5,050 |
| Plugged | CONOCO-DEAN UNIT #28W | 42-079-02500 | CONOCO INC | Injection | 1,000 | -- | 4,998–5,075 |
| Plugged | VEAL #3W | 42-079-01393 | TEXACO E & P INC | UIC | 1,000 | -- | 4,890–4,975 |
| Plugged | CONOCO-DEAN UNIT #35W | 42-079-02511 | CONOCO INC | Injection | 1,000 | -- | 4,991–5,048 |
| Plugged | DEAN, C. S. "A" #102W | 42-079-20097 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,950–5,050 |
| Plugged | CONOCO-DEAN UNIT #39W | 42-079-00491 | CONOCO INC | Injection | 1,000 | -- | 4,960–5,060 |
| Plugged | DEAN, C. S. "A" #26 | 42-079-02093 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,965–5,066 |
| Plugged | BOYD #53W | 42-079-30530 | LAKEWOOD OPER, LTD | Injection | 1,000 | -- | 4,780–5,250 |
| Plugged | DEAN, C. S. "A" #22 | 42-079-02090 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,949–5,063 |
| Plugged | CONOCO-DEAN UNIT #56W | 42-079-02493 | CONOCO INC | Injection | 1,000 | -- | 5,003–5,040 |
| Plugged | CONOCO-DEAN UNIT #67W | 42-079-00465 | MERIT ENGY CO | Injection | 1,000 | -- | 4,994–5,064 |
| Plugged | WRIGHT ESTATE #5 | 42-079-30889 | UNITED CO | Injection | 1,000 | -- | 4,728–4,986 |
| Plugged | CONOCO-DEAN UNIT #26W | 42-079-02512 | CONOCO INC | Injection | 1,000 | -- | 4,954–5,072 |
| Plugged | CONOCO-DEAN UNIT #69W | 42-079-02494 | LEGACY RESERVES OPER LP | Injection | 1,000 | -- | 4,980–5,123 |
| Inactive | MALLET UNIT #1116 | 42-079-31957 | HILCORP ENGY CO | Injection | 1,000 | -- | 4,850–5,150 |
| Cancelled | MALLET UNIT #1162W | 42-079-00000 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,850–5,150 |
| Cancelled | DEAN, C.S. "H" #4 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,008–5,047 |
| Plugged | CONOCO-DEAN UNIT #84W | 42-079-01212 | PERMIAN RES, INC | Injection | 1,000 | -- | 4,985–5,033 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #55W | 42-079-01702 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,801–4,838 |
| Plugged | DEAN, C. S. "A" #9 | 42-079-02104 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 4,931–5,077 |
| Cancelled | DEAN, C.S. "H" #8 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,025–5,059 |
| Plugged | CONOCO-DEAN UNIT #18W | 42-079-02351 | CONOCO INC | Injection | 1,000 | -- | 4,930–4,996 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #233W | 42-079-01555 | APC OPER PARTNERSHIP | Injection | 1,000 | -- | 4,808–4,839 |
| Plugged | CONOCO-DEAN UNIT #22W | 42-079-00473 | CONOCO INC | Injection | 1,000 | -- | 4,957–5,000 |
| Plugged | NORTH-WRIGHT #B 7 | 42-079-31603 | HEXP OPER, LLC | Injection | 1,000 | -- | 4,700–4,910 |
| Plugged | DEAN, C. S. "K" #4 | 42-079-00393 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,003–5,029 |
| Plugged | NORTH-WRIGHT #B 4 | 42-079-31660 | HEXP OPER, LLC | Injection | 1,000 | -- | 4,690–4,900 |
| Plugged | CONOCO-DEAN UNIT #4W | 42-079-01419 | MERIT ENGY CO | Injection | 1,000 | -- | 4,918–4,972 |
| Plugged | CONOCO-DEAN UNIT #7W | 42-079-01423 | LEGACY RESERVES OPER LP | Injection | 1,000 | -- | 4,877–5,004 |
| Plugged | DEAN UNIT "B" #8W | 42-079-00271 | TEXACO INC | Injection | 1,000 | -- | 4,997–5,026 |
| Plugged | CONOCO-DEAN UNIT #1W | 42-079-01428 | CONOCO INC | Injection | 1,000 | -- | 4,956–5,054 |
| Inactive | BOYD MALLET UNIT #78 | 42-079-30048 | EXTEX OPER CO | Injection | 1,000 | -- | 4,800–5,165 |
| Plugged | CONOCO-DEAN UNIT #8W | 42-079-01420 | CONOCO INC | Injection | 1,000 | -- | 4,954–5,047 |
| Plugged | NORTH CENTRAL LEVELLAND UNIT #95W | 42-079-01403 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,560–5,000 |
| Plugged | CONOCO-DEAN UNIT #12W | 42-079-02504 | CONOCO INC | Injection | 1,000 | -- | 5,004–5,020 |
| Plugged | NORTH-WRIGHT #C 8 | 42-079-31608 | HEXP OPER, LLC | Injection | 1,000 | -- | 4,700–4,930 |
| Plugged | MALLET UNIT #701W | 42-079-01499 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Plugged | MALLET UNIT #166W | 42-079-01497 | SUPERIOR OIL CO, THE | Injection | 1,000 | -- | 4,850–5,150 |
| Inactive | MALLET UNIT #115 | 42-079-01468 | HILCORP ENGY CO | Injection | 1,000 | -- | 4,850–5,150 |
| Plugged | WRIGHT UNIT #1134 | 42-079-00331 | SUN EXPL. & PROD. CO.-MIDLAND | UIC | 1,000 | -- | 4,928–4,973 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #40 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,054–5,070 |
| Plugged | DUGGAN SLAUGHTER UNIT #451AW | 42-079-00681 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 5,002–5,063 |
| Plugged | DUGGAN SLAUGHTER UNIT #651BW | 42-079-00717 | MERIT ENGY CO | Injection | 1,000 | -- | 5,008–5,061 |
| Plugged | DUGGAN SLAUGHTER UNIT #321AW | 42-079-00655 | MERIT ENGY CO | Injection | 1,000 | -- | 4,989–5,062 |
| Cancelled | SLAUGHTER, CARRIE DEAN "B" #43 | 42-079-00000 | PAN AMERICAN PETROLEUM CORP. | UIC | 1,000 | -- | 5,049–5,063 |
| Plugged | DEAN UNIT "B" #77W | 42-079-01855 | TEXACO INC | Injection | 1,000 | -- | 5,046–5,060 |
| Plugged | DUGGAN SLAUGHTER UNIT #341AW | 42-079-00659 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 5,009–5,061 |
| Plugged | DUGGAN SLAUGHTER UNIT #351BW | 42-079-00662 | CROSS TIMBERS ENGY, LLC | Injection | 1,000 | -- | 5,038–5,094 |
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.