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) |
|---|---|---|---|---|---|---|---|
| Active | DEAN, C. S. "A" #8W | 42-079-10256 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | SOUTHWEST LEVELLAND UNIT #96 X | 42-079-30128 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | WRIGHT UNIT #2258W | 42-079-00759 | EXTEX OPER CO | Injection | 500 | -- | 4,961–5,026 |
| Active | BOYD MALLET UNIT #54W | 42-079-02021 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | DEAN, C. S. "A" #88 | 42-079-10302 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #44W | 42-079-20062 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DUGGAN SLAUGHTER UNIT #17BW | 42-079-01029 | CROSS TIMBERS ENGY, LLC | Injection | 500 | -- | 5,056–5,103 |
| Active | DEAN, C. S. "A" #56W | 42-079-02068 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #124W | 42-079-10205 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #130W | 42-079-20105 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DUGGAN SLAUGHTER UNIT #221AW | 42-079-00631 | CROSS TIMBERS ENGY, LLC | Injection | 500 | -- | 5,035–5,092 |
| Active | WHITEFACE UNIT #3W | 42-079-00536 | DOUBLE BARREL OIL LLC | Injection | 500 | -- | 4,859–4,903 |
| Active | CUNNINGHAM, L. P. #1 | 42-079-32001 | VISION OIL AND GAS LLC | Injection | 500 | -- | 4,500–5,200 |
| Active | DEAN, C. S. "A" #37W | 42-079-02089 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | BOYD MALLET UNIT #47W | 42-079-00007 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | VEAL #20W | 42-079-00101 | EXTEX OPER CO | UIC | 500 | -- | 4,903–5,015 |
| Active | BOYD MALLET UNIT #37W | 42-079-01451 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | VEAL #36W | 42-079-30428 | EXTEX OPER CO | Injection | 500 | -- | 4,864–4,962 |
| Active | XIT UNIT #136W | 42-079-02296 | HILCORP ENGY CO | Injection | 500 | -- | 4,850–5,200 |
| Active | DEAN, C. S. "A" #163W | 42-079-02057 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DUGGAN SLAUGHTER UNIT #271BW | 42-079-00646 | CROSS TIMBERS ENGY, LLC | Injection | 500 | -- | 5,028–5,077 |
| Active | XIT UNIT #139W | 42-079-00737 | HILCORP ENGY CO | Injection | 500 | -- | 4,850–5,200 |
| Active | MASTEN, F. O. #68 | 42-079-31849 | VISION OIL AND GAS LLC | Injection | 500 | -- | 4,998–5,094 |
| Active | VEAL #4W | 42-079-00085 | EXTEX OPER CO | UIC | 500 | -- | 4,910–4,998 |
| Active | DEAN, C. S. "A" #143W | 42-079-02081 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | WRIGHT UNIT #821W | 42-079-30379 | EXTEX OPER CO | Injection | 500 | -- | 4,870–4,954 |
| Active | DEAN "I" #3W | 42-079-01179 | EXTEX OPER CO | Injection | 500 | -- | 4,944–5,062 |
| Active | DUGGAN SLAUGHTER UNIT #41CW | 42-079-00579 | CROSS TIMBERS ENGY, LLC | Injection | 500 | -- | 5,038–5,076 |
| Active | DEAN, C. S. "A" #57W | 42-079-10212 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | BOYD MALLET UNIT #55W | 42-079-00005 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | WRIGHT UNIT #722W | 42-079-02188 | EXTEX OPER CO | Injection | 500 | -- | 4,912–4,983 |
| Active | DEAN, C. S. "A" #25W | 42-079-20047 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #104X | 42-079-31536 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | BOYD MALLET UNIT #60W | 42-079-01466 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | WRIGHT UNIT #629W | 42-079-30266 | EXTEX OPER CO | Injection | 500 | -- | 4,898–4,948 |
| Active | DEAN, C. S. "A" #245 | 42-079-32866 | HILCORP ENGY CO | Injection | 500 | -- | 4,850–5,200 |
| Active | WHITEFACE UNIT #82W | 42-079-30081 | DOUBLE BARREL OIL LLC | Injection | 500 | -- | 4,885–4,950 |
| Active | SOUTHWEST LEVELLAND UNIT #112 | 42-079-32871 | HILCORP ENGY CO | Injection | 500 | -- | 4,800–5,000 |
| Active | BUCKSHOT UNIT #152W | 42-079-02287 | HUNT CIMARRON LTD. PARTNERSHIP | Injection | 500 | -- | 4,974–5,010 |
| Active | DEAN UNIT #B 3 | 42-079-02460 | ROYAL ORYX OG LLC | Injection | 500 | -- | 5,044–5,090 |
| Active | DEAN, C. S. "A" #46WX | 42-079-20063 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | WRIGHT, MILLER #3 | 42-079-32471 | A.C.T. OPER CO | Injection | 500 | -- | 4,884–4,920 |
| Active | DEAN, C. S. "A" #74WX | 42-079-02087 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | T. L. B. UNIT #18W | 42-079-32768 | EXTEX OPER CO | Injection | 500 | -- | 4,850–5,050 |
| Active | DEAN, C. S. "A" #84W | 42-079-10331 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | MARTY-WRIGHT #4 | 42-079-02381 | A.C.T. OPER CO | Injection | 500 | -- | 4,750–4,936 |
| Active | BOYD MALLET UNIT #66W | 42-079-01491 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | BOYD MALLET UNIT #72W | 42-079-02337 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | BOYD MALLET UNIT #71W | 42-079-01894 | EXTEX OPER CO | Injection | 500 | -- | 4,800–5,165 |
| Active | DUGGAN SLAUGHTER UNIT #13W | 42-079-02008 | CROSS TIMBERS ENGY, LLC | Injection | 500 | -- | 4,700–5,040 |
| Active | DEAN, C. S. "A" #106W | 42-079-02054 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #107W | 42-079-20099 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | DEAN, C. S. "A" #108W | 42-079-02065 | HILCORP ENGY CO | Injection | 500 | -- | 4,835–5,200 |
| Active | XIT UNIT #51W | 42-079-01994 | HILCORP ENGY CO | Injection | 450 | -- | 4,914–5,010 |
| Active | LEAGUE 91 PROJECT #108W | 42-079-00248 | VISION OIL AND GAS LLC | Injection | 425 | -- | 5,048–5,087 |
| Active | LEAGUE 91 PROJECT #209 | 42-079-31414 | VISION OIL AND GAS LLC | Injection | 400 | -- | 5,012–5,048 |
| Active | NORTH CENTRAL LEVELLAND UNIT #439 | 42-079-31921 | HILCORP ENGY CO | Injection | 400 | -- | 4,700–4,900 |
| Active | DEAN UNIT #A 6 | 42-079-32872 | ROYAL ORYX OG LLC | Injection | 400 | -- | 5,048–5,100 |
| Active | LEAGUE 91 PROJECT #306W | 42-079-31169 | VISION OIL AND GAS LLC | Injection | 360 | -- | 5,028–5,068 |
| Active | NORTH CENTRAL LEVELLAND UNIT #5W | 42-079-01937 | HILCORP ENGY CO | Injection | 350 | -- | 4,790–4,830 |
| Active | WRIGHT, J.M. UNIT #54 | 42-079-00138 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–5,000 |
| Active | WRIGHT, J.M. UNIT #72 | 42-079-33103 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–4,979 |
| Active | WRIGHT, J.M. UNIT #23 | 42-079-30541 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–4,980 |
| Active | WRIGHT, J.M. UNIT #84 | 42-079-33089 | A.C.T. OPER CO | Injection | 350 | -- | 4,948–4,964 |
| Active | WRIGHT, J.M. UNIT #83 | 42-079-33088 | A.C.T. OPER CO | Injection | 350 | -- | 4,914–4,964 |
| Active | WRIGHT, J.M. UNIT #15 | 42-079-30792 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–4,950 |
| Active | WRIGHT, J.M. UNIT #10 | 42-079-00148 | A.C.T. OPER CO | Injection | 350 | -- | 4,955–4,985 |
| Active | WRIGHT, J.M. UNIT #76 | 42-079-33023 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–4,984 |
| Active | WRIGHT, J.M. UNIT #87 | 42-079-33156 | A.C.T. OPER CO | Injection | 350 | -- | 4,800–5,000 |
| Active | WEST LEVELLAND UNIT #21W | 42-079-01209 | HILCORP ENGY CO | Injection | 300 | -- | 4,300–4,879 |
| Active | WEST LEVELLAND UNIT #236W | 42-079-32122 | HILCORP ENGY CO | Injection | 300 | -- | 4,650–5,000 |
| Active | MASTEN, F. O "H" #13 | 42-079-32705 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN, F. O "H" #12 | 42-079-32718 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN, F. O. "D" #14 | 42-079-32691 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | WHITEFACE UNIT #140W | 42-079-31983 | DOUBLE BARREL OIL LLC | Injection | 300 | -- | 4,914–4,940 |
| Active | MASTEN, F. O. "D" #13 | 42-079-32713 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN "C" #6 | 42-079-32902 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN, F. O. "D" #11 | 42-079-32715 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN "C" #21 | 42-079-32690 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN "C" #16 | 42-079-32711 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | SOUTHWEST LEVELLAND UNIT #21W | 42-079-30102 | HILCORP ENGY CO | Injection | 300 | -- | 4,863–5,000 |
| Active | MASTEN, F. O. "B" #8 | 42-079-32724 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | MASTEN, F. O. "B" #7 | 42-079-32721 | EXTEX OPER CO | Injection | 300 | -- | 4,800–5,200 |
| Active | WEST LEVELLAND UNIT #121AW | 42-079-32537 | HILCORP ENGY CO | Injection | 300 | -- | 4,700–5,000 |
| Active | LEAGUE 91 PROJECT #201W | 42-079-00386 | VISION OIL AND GAS LLC | Injection | 300 | -- | 5,005–5,052 |
| Active | MASTEN, F. O. #5 | 42-079-30823 | CROSS TIMBERS ENGY, LLC | Injection | 300 | -- | 4,974–5,066 |
| Active | MASTEN, F. O. #4 | 42-079-30816 | CROSS TIMBERS ENGY, LLC | Injection | 300 | -- | 4,952–5,052 |
| Active | MASTEN, F. O. #1 | 42-079-30781 | CROSS TIMBERS ENGY, LLC | Injection | 300 | -- | 4,960–5,049 |
| Active | WEST LEVELLAND UNIT #106W | 42-079-00414 | HILCORP ENGY CO | Injection | 300 | -- | 4,650–5,000 |
| Active | WHITEFACE UNIT #95 | 42-079-30312 | DOUBLE BARREL OIL LLC | Injection | 300 | -- | 4,918–4,945 |
| Active | WHITEFACE UNIT #47 | 42-079-01024 | DOUBLE BARREL OIL LLC | Injection | 300 | -- | 4,700–4,921 |
| Active | WEST LEVELLAND UNIT #142W | 42-079-00156 | HILCORP ENGY CO | Injection | 300 | -- | 4,650–5,000 |
| Active | MASTEN, F. O. "20" #4 | 42-079-30847 | CROSS TIMBERS ENGY, LLC | Injection | 300 | -- | 4,993–5,122 |
| Active | STANTON-MASTEN #1 | 42-079-30440 | CROSS TIMBERS ENGY, LLC | Injection | 300 | -- | 4,979–5,053 |
| Active | WEST LEVELLAND UNIT #260W | 42-079-32340 | HILCORP ENGY CO | Injection | 300 | -- | 4,750–5,000 |
| Active | WEST LEVELLAND UNIT #151W | 42-079-00452 | HILCORP ENGY CO | Injection | 300 | -- | 4,650–5,000 |
| Active | BLAKE, W. R #18 | 42-079-32303 | AVIATOR ENERGY, LLC | Injection | 300 | -- | 5,034–5,064 |
| Active | BLAKE, W. R #19 | 42-079-32312 | AVIATOR ENERGY, LLC | Injection | 300 | -- | 5,024–5,052 |
| Active | BLAKE, W. R #24 | 42-079-32606 | AVIATOR ENERGY, LLC | Injection | 300 | -- | 5,050–5,076 |
| Active | WEST LEVELLAND UNIT #349W | 42-079-32408 | HILCORP ENGY CO | Injection | 300 | -- | 4,750–5,000 |
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.