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	HUDSON "C" #53W	42-079-32305	JOPLIN OIL CO., INC	Injection	500	7,887	5,067–5,085
Active	WHITEFACE UNIT #63W	42-079-00799	DOUBLE BARREL OIL LLC	Injection	1,060	7,872	4,600–5,000
Active	BOYD #9R	42-079-33397	HILCORP ENGY CO	Injection	5,000	7,844	4,600–5,200
Active	BUCKSHOT UNIT #110W	42-079-02283	HUNT CIMARRON LTD. PARTNERSHIP	Injection	500	7,830	4,956–4,978
Active	WHITEFACE UNIT #93W	42-079-30310	DOUBLE BARREL OIL LLC	Injection	250	7,738	4,916–4,951
Active	BUCKSHOT EAST #467W	42-079-02339	HUNT CIMARRON LTD. PARTNERSHIP	Injection	1,000	7,729	4,920–5,030
Active	WRIGHT, J.M. UNIT #65	42-079-32987	A.C.T. OPER CO	Injection	350	7,708	4,800–4,988
Active	HUDSON "C" #54W	42-079-32306	JOPLIN OIL CO., INC	Injection	500	7,682	5,063–5,078
Active	SEIBER, E. H. #4	42-079-31463	JOPLIN OIL CO., INC	Injection	200	7,632	5,111–5,121
Active	HUDSON "C" #56W	42-079-32611	JOPLIN OIL CO., INC	Injection	500	7,549	5,065–5,105
Active	HUDSON "C" #57W	42-079-32612	JOPLIN OIL CO., INC	Injection	500	7,488	5,033–5,097
Active	DEAN UNIT "B" #12W	42-079-01067	VISION OIL AND GAS LLC	Injection	600	7,361	4,991–5,070
Active	WHITEFACE UNIT #115W	42-079-31002	DOUBLE BARREL OIL LLC	Injection	250	7,280	4,900–4,952
Active	VEAL #8W	42-079-00089	EXTEX OPER CO	UIC	500	7,218	4,870–4,987
Active	HUDSON "B" #52W	42-079-32055	JOPLIN OIL CO., INC	Injection	300	7,091	5,075–5,086
Active	WRIGHT, J.M. UNIT #64	42-079-32986	A.C.T. OPER CO	Injection	350	6,911	4,954–4,972
Active	DEAN "C" #7W	42-079-01433	EXTEX OPER CO	Injection	500	6,831	4,950–5,087
Active	VEAL #41W	42-079-31978	EXTEX OPER CO	Injection	200	6,647	4,920–5,030
Active	VEAL #43	42-079-32462	EXTEX OPER CO	Injection	500	6,520	4,894–4,986
Active	VEAL #42	42-079-31979	EXTEX OPER CO	Injection	500	6,441	4,920–5,020
Active	HUDSON "C" #2W	42-079-32333	JOPLIN OIL CO., INC	Injection	500	6,387	5,060–5,087
Active	HUDSON "C" #1W	42-079-32277	JOPLIN OIL CO., INC	Injection	500	6,348	5,069–5,089
Active	SOUTH MALLET UNIT #315W	42-079-02265	WINN OPER, LLC	Injection	1,200	6,317	4,800–5,600
Active	NORTH CENTRAL LEVELLAND UNIT #53	42-079-01443	HILCORP ENGY CO	Injection	3,000	6,268	4,650–4,900
Active	DEAN UNIT "B" #48W	42-079-01835	VISION OIL AND GAS LLC	Injection	1,000	6,245	5,049–5,059
Active	DEAN UNIT "B" #44W	42-079-00268	VISION OIL AND GAS LLC	Injection	600	6,229	4,900–5,200
Active	DEAN UNIT "B" #17W	42-079-00264	VISION OIL AND GAS LLC	Injection	750	6,222	5,008–5,074
Active	BOYD #3W	42-079-00163	HILCORP ENGY CO	Injection	5,000	6,218	4,700–5,200
Active	DEAN UNIT "B" #46W	42-079-01833	VISION OIL AND GAS LLC	Injection	600	6,214	4,900–5,200
Active	DEAN UNIT "B" #25	42-079-00273	VISION OIL AND GAS LLC	Injection	500	6,173	4,900–5,200
Active	HUDSON "B" #51W	42-079-31976	JOPLIN OIL CO., INC	Injection	300	6,138	5,063–5,074
Active	DEAN UNIT "B" #2RW	42-079-33184	VISION OIL AND GAS LLC	Injection	600	6,113	4,900–5,200
Active	COX, W. #5	42-079-31396	ACOMA OPER, LLC	Injection	500	6,109	4,723–4,758
Active	DEAN UNIT "B" #30W	42-079-01090	VISION OIL AND GAS LLC	Injection	600	6,083	4,900–5,200
Active	SEABOARD-WRIGHT #40	42-079-33240	HEXP OPER, LLC	Injection	1,000	6,082	4,858–4,900
Active	WRIGHT, J.M. UNIT #1	42-079-30533	A.C.T. OPER CO	Injection	350	6,081	4,928–4,946
Active	DEAN UNIT "B" #31W	42-079-01079	VISION OIL AND GAS LLC	Injection	600	6,078	4,900–5,200
Active	DEAN UNIT "B" #15W	42-079-01066	VISION OIL AND GAS LLC	Injection	750	6,021	4,990–5,040
Active	DEAN UNIT "B" #38W	42-079-01086	VISION OIL AND GAS LLC	Injection	500	6,019	5,012–5,070
Active	DEAN UNIT "B" #39W	42-079-01832	VISION OIL AND GAS LLC	Injection	600	5,976	4,900–5,200
Active	DEAN "C" #6W	42-079-01432	EXTEX OPER CO	Injection	500	5,893	4,940–5,092
Active	DEAN UNIT "B" #47W	42-079-01834	VISION OIL AND GAS LLC	Injection	600	5,859	4,900–5,200
Active	DEAN UNIT "B" #41	42-079-01825	VISION OIL AND GAS LLC	Injection	600	5,783	4,900–5,200
Active	DEAN UNIT "B" #151W	42-079-31103	VISION OIL AND GAS LLC	Injection	600	5,741	4,900–5,200
Active	WEST LEVELLAND UNIT #90W	42-079-00380	HILCORP ENGY CO	Injection	175	5,443	4,877–4,915
Active	CONOCO-DEAN UNIT #156	42-079-32591	EXTEX OPER CO	Injection	1,000	5,438	4,900–5,190
Active	SEIBER, E. H. #9	42-079-31638	JOPLIN OIL CO., INC	Injection	300	5,425	5,110–5,136
Active	SLAUGHTER, NW. (SAN ANDRES) UNIT #25W	42-079-00069	AVIATOR ENERGY, LLC	Injection	600	5,420	4,903–5,017
Active	DUGGAN SLAUGHTER UNIT #1409NW	42-079-32819	CROSS TIMBERS ENGY, LLC	Injection	1,000	5,322	4,200–5,300
Active	WEST LEVELLAND UNIT #60W	42-079-00859	HILCORP ENGY CO	Injection	175	5,305	4,833–4,905
Active	WEST LEVELLAND UNIT #41W	42-079-00500	HILCORP ENGY CO	Injection	175	5,100	4,815–4,880
Active	T. L. B. UNIT #22W	42-079-00058	EXTEX OPER CO	UIC	500	4,264	4,912–5,025
Active	WEST LEVELLAND UNIT #258W	42-079-32338	HILCORP ENGY CO	Injection	300	4,085	4,750–5,000
Active	BOYD #7W	42-079-00167	HILCORP ENGY CO	Injection	5,000	3,833	4,700–5,200
Active	MALLET UNIT #1525W	42-079-33278	HILCORP ENGY CO	Injection	2,500	3,817	4,400–5,170
Active	MALLET UNIT #1512W	42-079-33249	HILCORP ENGY CO	Injection	2,500	3,795	4,400–5,170
Active	MAGNUM LEVELLAND UNIT #401	42-079-30233	EXTEX OPER CO	Injection	1,500	3,591	4,750–5,000
Active	DUGGAN SLAUGHTER UNIT #O811NW	42-079-32817	CROSS TIMBERS ENGY, LLC	Injection	1,000	3,411	4,200–5,300
Active	STANTON, JOE L. TRUSTEE #9	42-079-02143	EXTEX OPER CO	Injection	300	3,356	4,800–5,200
Active	WRIGHT, J.M. UNIT #60	42-079-10007	A.C.T. OPER CO	Injection	350	3,067	4,980–5,000
Active	BONANZA (SAN ANDRES) UNIT #1001	42-079-31733	MANZANO, LLC	Injection	600	3,050	4,722–4,921
Active	XIT UNIT #66W	42-079-00311	HILCORP ENGY CO	Injection	500	3,033	4,850–5,200
Active	DEAN UNIT #I 5	42-079-33259	ROYAL ORYX OG LLC	Injection	1,000	3,029	5,000–5,100
Active	BUCKSHOT EAST #470W	42-079-01264	HUNT CIMARRON LTD. PARTNERSHIP	Injection	1,000	2,987	4,973–5,084
Active	WEST LEVELLAND UNIT #291W	42-079-32347	HILCORP ENGY CO	Injection	300	2,986	4,750–5,000
Active	NORTH-WRIGHT #B 10	42-079-31407	WALKABOUT OPER, LLC	Injection	800	2,980	4,844–4,900
Active	BOYD #53WR	42-079-33008	HILCORP ENGY CO	Injection	5,000	2,883	4,700–5,200
Active	DUGGAN SLAUGHTER UNIT #271AW	42-079-00645	CROSS TIMBERS ENGY, LLC	Injection	1,000	2,883	5,013–5,056
Active	WRIGHT UNIT #201A	42-079-31739	EXTEX OPER CO	Injection	500	2,855	4,930–4,970
Active	VEAL #44W	42-079-32461	EXTEX OPER CO	Injection	500	2,824	4,864–5,030
Active	WOODLEY, F. L. #30W	42-079-01560	HILCORP ENGY CO	Injection	600	2,783	4,850–5,150
Active	WEST LEVELLAND UNIT #285W	42-079-32396	HILCORP ENGY CO	Injection	300	2,735	4,750–5,000
Active	DEAN UNIT #B 9W	42-079-33257	ROYAL ORYX OG LLC	Injection	1,000	2,626	5,000–5,275
Active	WRIGHT, D. S. "C" #1D	42-079-32103	ATLAS OPER LLC	Disposal	1,000	2,499	1,600–1,700
Active	VEAL #2W	42-079-00083	EXTEX OPER CO	UIC	500	2,388	4,885–4,986
Active	BONANZA (SAN ANDRES) UNIT #503	42-079-31625	MANZANO, LLC	Injection	600	2,206	4,744–5,000
Active	MASTEN, F. O. #10	42-079-30864	CROSS TIMBERS ENGY, LLC	Injection	300	2,116	4,988–5,124
Active	WRIGHT UNIT #306W	42-079-01911	EXTEX OPER CO	Injection	500	2,088	4,771–4,947
Active	MAGNUM LEVELLAND UNIT #407	42-079-32911	EXTEX OPER CO	Injection	1,500	1,807	4,750–5,052
Active	CONOCO-DEAN UNIT #149	42-079-32463	EXTEX OPER CO	Injection	1,000	1,761	4,900–5,190
Active	REED WRIGHT "B" #19A	42-079-33299	HEXP OPER, LLC	Injection	1,000	1,532	4,700–4,900
Active	WEST LEVELLAND UNIT #11W	42-079-01220	HILCORP ENGY CO	Injection	2,500	1,462	4,558–4,900
Active	BUCKSHOT EAST #508	42-079-01940	HUNT CIMARRON LTD. PARTNERSHIP	Injection	1,000	1,439	4,923–5,060
Active	CALVIN-STARNES UNIT #D 14	42-079-31548	VISION OIL AND GAS LLC	Injection	800	1,250	5,082–5,110
Active	WOODLEY, F. L. #7W	42-079-01524	HILCORP ENGY CO	Injection	1,000	1,126	4,600–5,150
Active	CALVIN-STARNES UNIT #D 11	42-079-31489	VISION OIL AND GAS LLC	Injection	800	908	5,064–5,077
Active	WOODLEY, F. L. #87W	42-079-33283	HILCORP ENGY CO	Injection	1,500	901	4,850–5,500
Active	CALVIN-STARNES UNIT #E 13	42-079-31971	VISION OIL AND GAS LLC	Injection	800	842	5,072–5,106
Active	CALVIN-STARNES UNIT #D 10	42-079-31387	VISION OIL AND GAS LLC	Injection	800	808	5,062–5,086
Active	MALLET UNIT #1149W	42-079-32614	HILCORP ENGY CO	Injection	2,000	802	4,400–5,077
Active	CALVIN-STARNES UNIT #K 17	42-079-31850	VISION OIL AND GAS LLC	Injection	400	795	5,032–5,060
Active	CALVIN-STARNES UNIT #E 11	42-079-31972	VISION OIL AND GAS LLC	Injection	800	760	5,063–5,082
Active	CALVIN-STARNES UNIT #D 9	42-079-31444	VISION OIL AND GAS LLC	Injection	800	685	5,054–5,082
Active	WHITEFACE UNIT #139W	42-079-31981	DOUBLE BARREL OIL LLC	Injection	300	666	4,859–4,886
Active	CALVIN-STARNES UNIT #J 14	42-079-31381	VISION OIL AND GAS LLC	Injection	800	656	5,013–5,040
Active	CALVIN-STARNES UNIT #D 12	42-079-31578	VISION OIL AND GAS LLC	Injection	800	650	5,074–5,100
Active	CALVIN-STARNES UNIT #K 15	42-079-31251	VISION OIL AND GAS LLC	Injection	800	632	4,990–5,012
Active	NORTH CENTRAL LEVELLAND UNIT #257W	42-079-02159	HILCORP ENGY CO	Injection	3,150	616	4,400–4,895
Active	WRIGHT, STUART P. #1	42-079-30912	HEXP OPER, LLC	Injection	1,000	613	4,680–4,900
Active	NORTH CENTRAL LEVELLAND UNIT #59W	42-079-01382	HILCORP ENGY CO	Injection	2,200	609	4,300–4,861

page 6 of 22 · 2,112 wells

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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.