Saltwater Disposal Wells in Hockley County

Complete UIC injection & disposal well inventory from RRC permits, with reported H-10 volumes.

Active Wells

2,367

Permitted Capacity

6.9M bbl/d

Injected 12mo (thru 2025-06)

165.8M bbl

UIC Permits All Time

4,003

STATUS	LEASE / WELL	API	OPERATOR	TYPE	PERMITTED BBL/D	INJECTED 12MO	ZONE (FT)
Active	MALLET UNIT #169	42-219-01206	HILCORP ENGY CO	Injection	2,000	30,283	4,400–5,385
Active	EAST MALLET UNIT #29W	42-219-01135	HILCORP ENGY CO	Injection	2,500	30,211	4,400–5,040
Active	CENTRAL MALLET UNIT #189	42-219-30066	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,024	30,122	4,600–5,300
Active	LEVELLAND UNIT #240W	42-219-02057	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	30,062	4,550–5,100
Active	TYNER UNIT #101W	42-219-02618	OXY USA WTP EOR, LLC	Injection	5,000	30,021	4,400–5,200
Active	WEST LEVELLAND UNIT #52W	42-219-02167	HILCORP ENGY CO	Injection	300	29,914	4,650–5,000
Active	CENTRAL MALLET UNIT #290	42-219-31404	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	29,744	4,850–5,150
Active	CENTRAL MALLET UNIT #386	42-219-36577	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,024	29,699	4,600–5,300
Active	NORTH CENTRAL LEVELLAND UNIT #212W	42-219-01392	HILCORP ENGY CO	Injection	1,000	29,660	4,796–4,856
Active	MALLET UNIT #120W	42-219-01159	HILCORP ENGY CO	Injection	2,000	29,651	4,400–5,310
Active	EAST RKM UNIT #28W	42-219-00349	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	29,647	4,700–5,200
Active	WILSON, MAPLE #86W	42-219-32727	HILCORP ENGY CO	Injection	700	29,577	4,832–4,973
Active	MALLET UNIT #1509W	42-219-36901	HILCORP ENGY CO	Injection	2,500	29,484	4,700–5,200
Active	CENTRAL MALLET UNIT #324	42-219-34036	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	29,474	4,886–5,041
Active	CENTRAL MALLET UNIT #278	42-219-31410	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,500	29,315	4,600–5,300
Active	SLAUGHTER CONSOLIDATED #102	42-219-36413	HILCORP ENGY CO	Injection	2,000	29,295	7,100–8,600
Active	CENTRAL MALLET UNIT #23	42-219-03202	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	29,122	4,934–5,028
Active	NORTHWEST MALLET UNIT #40W	42-219-00591	OCCIDENTAL PERMIAN EOR, LLC	UIC	500	28,942	4,873–5,064
Active	MALLET UNIT #220	42-219-31292	HILCORP ENGY CO	Injection	2,500	28,931	4,400–5,071
Active	CENTRAL MALLET UNIT #57	42-219-03250	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	28,924	4,600–5,300
Active	LEVELLAND "C" #8	42-219-32491	CROSS TIMBERS ENGY, LLC	Injection	350	28,800	4,753–4,817
Active	NORTH CENTRAL LEVELLAND UNIT #192	42-219-01338	HILCORP ENGY CO	Injection	1,000	28,482	4,802–4,832
Active	LEVELLAND UNIT #582	42-219-30710	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	28,242	4,550–5,100
Active	GORDON, M. G. #11W	42-219-00499	WHITE ROCK OIL & GAS, LLC	Injection	800	28,185	5,002–5,059
Active	CENTRAL MALLET UNIT #273A	42-219-31450	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	28,174	4,938–5,052
Active	NORTH CENTRAL LEVELLAND UNIT #380	42-219-33761	HILCORP ENGY CO	Injection	1,000	28,134	4,750–4,900
Active	WEST SUNDOWN UNIT #014	42-219-31941	OXY USA EOR, LLC	Injection	5,200	28,056	4,600–5,600
Active	WEST RKM UNIT #225	42-219-32487	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	28,027	4,600–5,200
Active	MALLET UNIT #705W	42-219-01138	HILCORP ENGY CO	Injection	2,300	27,991	4,400–5,405
Active	NEWSOM, C. V. #10W	42-219-33413	HILCORP ENGY CO	Injection	1,000	27,880	4,729–4,910
Active	CENTRAL MALLET UNIT #120W	42-219-03185	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	27,820	4,834–5,029
Active	LEVELLAND UNIT #524	42-219-30415	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,596	4,550–5,100
Active	MALLET UNIT #133W	42-219-01153	HILCORP ENGY CO	Injection	2,000	27,586	4,400–5,328
Active	SOUTHEAST LEVELLAND UNIT #188W	42-219-31072	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	27,497	4,705–4,983
Active	MONTGOMERY ESTATE-DAVIES NCT-2 #70W	42-219-32932	BCE-MACH III LLC	Injection	500	27,485	4,650–4,900
Active	EAST RKM UNIT #94	42-219-36882	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,478	4,600–5,200
Active	SLAUGHTER ESTATE UNIT #425	42-219-02411	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,332	4,600–5,200
Active	SOUTHEAST LEVELLAND UNIT #359	42-219-36654	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,238	4,550–5,100
Active	CENTRAL MALLET UNIT #137	42-219-00825	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	27,211	4,927–5,088
Active	LEVELLAND UNIT #163	42-219-02033	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,197	4,550–5,100
Active	NORTHWEST MALLET UNIT #72W	42-219-00575	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	27,178	4,700–5,200
Active	SLAUGHTER, A. A. ESTATE #74W	42-219-35277	BURK ROYALTY CO., LTD	Injection	1,200	27,116	5,924–5,938
Active	CENTRAL LEVELLAND UNIT #47W	42-219-00416	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	27,019	4,550–5,000
Active	SOUTHEAST LEVELLAND UNIT #82W	42-219-02646	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	26,974	4,718–4,994
Active	LEVELLAND UNIT #516	42-219-30392	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	26,965	4,500–5,100
Active	MALLET #86W	42-219-30950	OXY USA WTP EOR, LLC	Injection	1,000	26,939	4,750–5,059
Active	LEVELLAND "L" #7	42-219-33744	CROSS TIMBERS ENGY, LLC	Injection	350	26,830	4,736–4,806
Active	LEVELLAND UNIT #555W	42-219-30363	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	26,649	4,500–5,100
Active	SLAUGHTER ESTATE UNIT #259	42-219-30019	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	26,598	4,700–5,200
Active	SOUTHEAST LEVELLAND UNIT #224	42-219-32351	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	26,496	4,685–4,986
Active	LEVELLAND UNIT #482	42-219-30425	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	26,408	4,550–5,100
Active	NORTH CENTRAL LEVELLAND UNIT #32W	42-219-01006	HILCORP ENGY CO	Injection	1,000	26,350	4,758–4,798
Active	SOUTHEAST LEVELLAND UNIT #332	42-219-35146	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	26,336	4,500–5,000
Active	CENTRAL MALLET UNIT #286	42-219-31431	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	26,044	4,941–5,080
Active	ELLIS "B" #1W	42-219-35329	BURK ROYALTY CO., LTD	Injection	1,200	26,002	5,886–5,920
Active	SLAUGHTER, BOB #617W	42-219-37519	BCE-MACH III LLC	Injection	2,200	25,998	7,400–8,100
Active	WEST RKM UNIT #260	42-219-35065	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,120	25,890	4,700–5,100
Active	CENTRAL MALLET UNIT #25	42-219-00692	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	25,792	4,600–5,300
Active	SLAUGHTER ESTATE UNIT #258	42-219-30009	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	25,776	4,700–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #74W	42-219-01083	HILCORP ENGY CO	Injection	1,000	25,675	4,560–5,000
Active	WEST LEVELLAND UNIT #166W	42-219-02641	HILCORP ENGY CO	Injection	300	25,659	4,650–5,000
Active	WEST RKM UNIT #207	42-219-31488	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	25,634	4,600–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #241W	42-219-01106	HILCORP ENGY CO	Injection	500	25,633	4,560–5,000
Active	SLAUGHTER ESTATE UNIT #74	42-219-02575	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,140	25,406	4,600–5,400
Active	SOUTHEAST LEVELLAND UNIT #153W	42-219-30704	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,150	25,359	4,550–5,100
Active	NORTH CENTRAL LEVELLAND UNIT #197W	42-219-01012	HILCORP ENGY CO	Injection	1,000	25,346	4,560–5,000
Active	CENTRAL MALLET UNIT #5	42-219-00739	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	24,999	4,900–5,017
Active	SLAUGHTER, ALEX #10	42-219-31379	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,600	24,984	4,903–5,004
Active	GANN, L. D. #21	42-219-35809	AVIATOR ENERGY, LLC	Injection	1,000	24,975	4,783–4,905
Active	SLAUGHTER, A. A. ESTATE #82W	42-219-35755	BURK ROYALTY CO., LTD	Injection	800	24,960	5,904–5,916
Active	MONTGOMERY ESTATE-DAVIES NCT-2 #3	42-219-02892	BCE-MACH III LLC	Injection	500	24,808	4,650–4,900
Active	LEVELLAND UNIT #483	42-219-30434	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	24,728	4,550–5,100
Active	MALLET #56W	42-219-01424	OXY USA WTP EOR, LLC	Injection	5,000	24,726	4,800–5,200
Active	SUNDOWN UNIT #100	42-219-37375	HILCORP ENGY CO	Injection	5,300	24,724	4,600–5,300
Active	TYNER UNIT #202W	42-219-01445	OXY USA WTP EOR, LLC	Injection	500	24,636	4,898–4,980
Active	CENTRAL MALLET UNIT #275	42-219-31219	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	24,591	4,941–5,064
Active	DAVIS #8	42-219-32544	EL RAN INC	Injection	2,000	24,563	4,768–4,810
Active	MALLET #103W	42-219-31134	OXY USA WTP EOR, LLC	Injection	5,000	24,540	4,700–5,200
Active	LEVELLAND UNIT #919	42-219-34611	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	24,530	4,550–5,100
Active	LEVELLAND UNIT #528	42-219-30395	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	24,487	4,550–5,100
Active	CADDELL #2W	42-219-36086	BURK ROYALTY CO., LTD	Injection	800	24,361	7,150–8,260
Active	GANN, L. D. #11W	42-219-30905	AVIATOR ENERGY, LLC	Injection	1,000	24,323	4,800–4,914
Active	WEST RKM UNIT #212	42-219-32496	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	24,277	4,600–5,200
Active	HAMILL UNIT #901	42-219-31762	EL RAN INC	Injection	500	24,221	4,766–4,799
Active	SOUTHEAST LEVELLAND UNIT #189W	42-219-31069	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	24,109	4,722–4,990
Active	SLAUGHTER ESTATE UNIT #10CO	42-219-33716	OCCIDENTAL PERMIAN EOR, LLC	Injection	5,000	23,874	4,700–5,200
Active	NORTH CENTRAL LEVELLAND UNIT #35W	42-219-01078	HILCORP ENGY CO	Injection	400	23,792	4,732–4,794
Active	LEVELLAND #1	42-219-01826	CROSS TIMBERS ENGY, LLC	Injection	1,000	23,400	4,858–4,894
Active	WEST SUNDOWN UNIT #018	42-219-01729	OXY USA EOR, LLC	Injection	5,200	23,230	4,600–5,600
Active	NORTH CENTRAL LEVELLAND UNIT #193W	42-219-30620	HILCORP ENGY CO	Injection	1,000	23,187	4,630–4,840
Active	DAVIS #6	42-219-32310	EL RAN INC	Injection	200	23,148	4,778–4,784
Active	PHILLIPS, C. M. #3	42-219-35745	SIXESS ENGY, LLC	Injection	500	23,104	4,550–4,750
Active	MALLET L&C CO. #212	42-219-36867	CROSS TIMBERS ENGY, LLC	Injection	1,000	22,990	4,800–5,150
Active	EAST MALLET UNIT #68W	42-219-01157	HILCORP ENGY CO	Injection	1,950	22,560	4,700–5,150
Active	SUNDOWN SLAUGHTER UNIT #1081	42-219-03013	BCE-MACH III LLC	Injection	2,200	22,540	4,800–5,200
Active	LEVELLAND UNIT #136W	42-219-02319	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,000	22,476	4,720–4,882
Active	WEST SUNDOWN UNIT #010	42-219-01644	OXY USA EOR, LLC	Injection	5,200	22,413	4,600–5,600
Active	EAST MALLET UNIT #21W	42-219-01139	HILCORP ENGY CO	Injection	1,950	22,411	4,700–5,150
Active	YELLOWHOUSE UNIT #115	42-219-34393	HILCORP ENGY CO	Injection	2,500	22,402	4,150–4,642
Active	CENTRAL MALLET UNIT #276	42-219-31215	OCCIDENTAL PERMIAN EOR, LLC	Injection	1,800	22,375	4,955–5,049

page 15 of 41 · 4,003 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.