Saltwater Disposal Wells in Howard County

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

Active Wells

1,180

Permitted Capacity

6.0M bbl/d

Injected 12mo (thru 2025-06)

488.6M bbl

UIC Permits All Time

3,068

Howard County produced-water market → capacity trends, top holders, permit velocity

Earthquakes in Howard County → seismicity & the disposal link, from TexNet

STATUS	LEASE / WELL	API	OPERATOR	TYPE	PERMITTED BBL/D	INJECTED 12MO	ZONE (FT)
Active	DENMAN -J- #7W	42-227-01144	UNITED OIL & SHALE LLC	UIC	800	37,081	2,550–2,891
Active	CHALK, OTIS #2W	42-227-30358	UNITEX OIL & GAS, L.L.C	Injection	850	37,072	1,600–3,160
Active	SNYDER, SUSIE B. #2055W	42-227-35401	GRAYROCK ENERGY II, LLC	Injection	800	36,964	2,500–3,000
Active	TXL, B. S. -D- #74	42-227-36034	GRAYROCK ENERGY II, LLC	Injection	1,000	36,663	2,500–3,700
Active	TEX. LAND&MORTGAGE CO.-A-R/A-B- #32W	42-227-31178	BASA RES, INC	Injection	1,000	36,298	2,500–2,800
Active	DODGE, GRANVILLE M., EST. #238	42-227-34526	GRAYROCK ENERGY II, LLC	Injection	400	35,808	2,300–2,950
Active	SNYDER, B. S. -C- #2844W	42-227-35543	GRAYROCK ENERGY II, LLC	Injection	800	35,786	2,550–3,050
Active	SNYDER, B. S. -C- #2830W	42-227-35484	GRAYROCK ENERGY II, LLC	Injection	800	35,602	2,550–3,050
Active	ODANIEL -A- #1	42-227-02838	WINN OPER, LLC	Injection	300	35,200	2,553–2,760
Active	BELL, A. M. #5	42-227-00300	BCE-MACH III LLC	Injection	1,000	34,783	2,401–2,785
Active	CHALK -A- #59W	42-227-35644	GRAYROCK ENERGY II, LLC	Injection	1,000	34,695	2,200–3,300
Active	REED "D-142" #3	42-227-30298	GRAYROCK ENERGY II, LLC	Injection	1,500	34,321	3,606–3,732
Active	SNYDER, SUSIE B. #2050W	42-227-35409	GRAYROCK ENERGY II, LLC	Injection	800	34,026	2,500–3,000
Active	BIG SPRINGS BRINE STATION #7D	42-227-37074	PWS-ES, LLC	Disposal	6,000	33,795	2,400–3,320
Active	CHALK, OTIS #3WL	42-227-30484	SAHARA OPER CO	UIC	700	33,793	2,800–3,000
Active	CHALK, MARY, -BE- #4 D	42-227-04136	EXTEX OPER CO	Injection	1,000	33,283	1,405–1,408
Active	DODGE, GRANVILLE M., EST. #240	42-227-34531	GRAYROCK ENERGY II, LLC	Injection	1,000	33,266	2,340–2,900
Active	DOUTHIT #4W	42-227-01707	RCW OIL, LLC	Injection	300	33,210	2,820–2,990
Active	DODGE, GRANVILLE M., EST. #239	42-227-34527	GRAYROCK ENERGY II, LLC	Injection	400	32,867	2,300–2,950
Active	CLAY, H. R. -A- #27	42-227-35045	WASH, ROBERT C. INC	Injection	2,500	32,720	2,285–2,467
Active	OWEN-CHALK #42W	42-227-33816	CITATION OIL & GAS CORP	Injection	50,000	32,261	4,200–6,000
Active	ODANIEL, M. H. #10W	42-227-00808	SAHARA OPER CO	Injection	500	31,669	2,632–2,684
Active	ODANIEL, M. H. -B- #12W	42-227-10530	SAHARA OPER CO	Injection	900	31,121	2,659–2,718
Active	SNYDER, SUSIE B. #2023W	42-227-35561	GRAYROCK ENERGY II, LLC	Injection	800	31,015	2,500–3,000
Active	HOOKS SWD #5W	42-227-02258	MOSS PETRO CO	Injection	1,000	30,464	1,842–1,906
Active	ODANIEL, M. H. #12W	42-227-00810	SAHARA OPER CO	Injection	500	30,277	2,595–2,694
Active	DO RIGHT #1	42-227-35727	MIDLAND OIL AND GAS, INC	Injection	5,000	30,174	6,394–6,510
Active	T. X. L. -D- #3	42-227-01230	UNITED OIL & SHALE LLC	Injection	400	29,791	2,525–2,909
Active	CHALK, OTIS #6W	42-227-30310	UNITEX OIL & GAS, L.L.C	Injection	850	29,565	1,550–3,100
Active	SNYDER, B. S. -C- #54W	42-227-31184	GRAYROCK ENERGY II, LLC	Injection	700	29,082	2,589–2,821
Active	SNYDER, B. S. -A- #71	42-227-36031	GRAYROCK ENERGY II, LLC	Injection	1,000	29,025	2,500–3,700
Active	ODANIEL, M. H. #16W	42-227-00814	SAHARA OPER CO	Injection	500	28,965	2,605–2,703
Active	BATJER, PATTI -C- #3	42-227-33400	GRAYROCK ENERGY II, LLC	Injection	1,000	28,716	3,381–3,702
Active	SNYDER, B. S. -E- #2875W	42-227-35478	GRAYROCK ENERGY II, LLC	Injection	800	28,180	2,550–3,050
Active	CROSS,J. #1D	42-227-34396	SOUTHWEST ROYALTIES, INC	Disposal	1,000	27,219	3,620–3,730
Active	DODGE, GRANVILLE M., EST. #187W	42-227-31092	GRAYROCK ENERGY II, LLC	Injection	1,000	27,159	2,385–2,725
Active	DOUTHIT -A- UNIT #6	42-227-02979	WASH, ROBERT C. INC	UIC	100	26,270	1,250–1,303
Active	JONES, PERCY #43W	42-227-32367	WINN OPER, LLC	Injection	2,000	25,675	2,308–2,835
Active	SNYDER, SUSIE B. #2071W	42-227-35622	GRAYROCK ENERGY II, LLC	Injection	800	25,229	2,500–3,000
Active	BELL, A. M. #70W	42-227-36178	BCE-MACH III LLC	Injection	1,500	25,142	2,400–3,500
Active	REED. L. R & W. N. #1R	42-227-35139	GRAYROCK ENERGY II, LLC	Injection	800	25,073	2,050–2,700
Active	CHALK #54W	42-227-30480	SAHARA OPER CO	Injection	700	24,608	2,150–3,000
Active	DODGE, GRANVILLE M., EST. #183W	42-227-31041	GRAYROCK ENERGY II, LLC	Injection	400	24,511	2,407–2,818
Active	ROBERTS, DORA -BDE- #4102W	42-227-34769	BASA RES, INC	Injection	2,000	24,510	2,000–3,000
Active	SETTLES, W. R. -A- #114W	42-227-31683	CITATION OIL & GAS CORP	Injection	4,000	23,997	2,062–2,624
Active	EAST VEALMOOR DISPOSAL UNIT NO.2 #1	42-227-04381	SURGE OPER, LLC	Injection	15,000	23,867	7,500–8,900
Active	BELLAM #17W	42-227-34033	NEW HEIGHT ENERGY, LLC	Injection	600	23,727	2,445–2,975
Active	DODGE, GRANVILLE M., EST. #227W	42-227-34198	GRAYROCK ENERGY II, LLC	Injection	400	22,794	2,300–2,950
Active	CLAY, H. R. -B- #3W	42-227-01800	ROBERTSON RES, INC	UIC	100	22,540	1,670–1,860
Active	SNYDER, SUSIE B. #2018W	42-227-35402	GRAYROCK ENERGY II, LLC	Injection	800	22,346	2,500–3,000
Active	SNYDER, SUSIE B. #2022W	42-227-35560	GRAYROCK ENERGY II, LLC	Injection	800	22,203	2,500–3,000
Active	SON OF BIG BAD #1	42-227-34107	MID RIVER MIDSTREAM LLC	Disposal	12,500	22,190	3,430–6,059
Active	DODGE, GRANVILLE M., EST. #177W	42-227-30698	GRAYROCK ENERGY II, LLC	Injection	400	21,928	2,300–2,950
Active	DODGE, GRANVILLE M., EST. #229W	42-227-34200	GRAYROCK ENERGY II, LLC	Injection	1,000	21,477	2,666–2,830
Active	SNYDER, SUSIE B. #2036W	42-227-35414	GRAYROCK ENERGY II, LLC	Injection	800	20,226	2,500–3,000
Active	SNYDER, SUSIE B. #2056W	42-227-35404	GRAYROCK ENERGY II, LLC	Injection	800	19,461	2,500–3,000
Active	BELLAM #16	42-227-32463	NEW HEIGHT ENERGY, LLC	Injection	600	19,262	2,450–2,720
Active	SNYDER, SUSIE B. #2034W	42-227-35412	GRAYROCK ENERGY II, LLC	Injection	800	18,932	2,500–3,000
Active	JOHN B. BOWEN, JR. "A" #2	42-227-32961	SWEET CRUDE OPERATING LLC	Injection	1,500	18,866	2,666–2,926
Active	DENMAN, L. C. #7	42-227-00261	SHENANDOAH PETRO CORP	Injection	500	18,802	2,450–2,882
Active	DENMAN, L. C. #9W	42-227-34208	NEW HEIGHT ENERGY, LLC	Injection	500	18,245	2,439–2,836
Active	CLAY #24	42-227-33923	GRAYROCK ENERGY II, LLC	Injection	1,000	18,187	2,200–3,300
Active	DENMAN -H- #1W	42-227-30977	UNITED OIL & SHALE LLC	UIC	800	17,948	2,586–2,848
Active	TEXAS LAND&MORTGAGE CO.-A-R/A-A- #27W	42-227-10960	BASA RES, INC	Injection	1,000	17,739	2,580–2,940
Active	SNYDER, B. S. -C- #2862W	42-227-35540	GRAYROCK ENERGY II, LLC	Injection	800	17,510	2,550–3,050
Active	DOUTHIT UNIT #512W	42-227-30318	GRAYROCK ENERGY II, LLC	Injection	500	17,335	1,311–1,400
Active	TEXAS LAND&MORTGAGE CO."A"R/A"B" #116	42-227-32216	BASA RES, INC	Injection	10,000	17,213	7,485–7,559
Active	SNYDER, SUSIE B. #2067W	42-227-35621	GRAYROCK ENERGY II, LLC	Injection	800	17,101	2,500–3,000
Active	DAVIS, J. W. -B- #10W	42-227-30633	GRAYROCK ENERGY II, LLC	Injection	400	17,000	2,426–2,805
Active	DOUTHIT UNIT #119W	42-227-31078	GRAYROCK ENERGY II, LLC	Injection	700	16,217	1,343–1,359
Active	HOOKS #18 W	42-227-32611	RCW OIL, LLC	Injection	750	16,139	2,000–3,300
Active	BELLAM #13	42-227-31645	NEW HEIGHT ENERGY, LLC	Injection	600	16,081	2,350–2,800
Active	DOUTHIT, E. W. DE #107W	42-227-10111	GRAYROCK ENERGY II, LLC	Injection	700	15,918	1,388–2,273
Active	READ, C. D. #9W	42-227-31713	SWEET CRUDE OPERATING LLC	Injection	500	15,902	2,458–2,757
Active	DOUTHIT, E. W. DE #108W	42-227-10112	GRAYROCK ENERGY II, LLC	Injection	700	15,788	1,384–2,285
Active	READ, W. R. -B- #7D	42-227-10708	SWEET CRUDE OPERATING LLC	UIC	0	15,644	2,690–3,105
Active	STEWART, G. C. #23W	42-227-32223	RCW OIL, LLC	Injection	600	15,575	2,278–2,479
Active	T. X. L. -C- #9	42-227-01395	UNITED OIL & SHALE LLC	Injection	700	15,508	2,550–2,905
Active	GUITAR CONSOLIDATED #1312	42-227-35812	APEX RESOURCES LLC	Injection	1,500	15,195	5,650–5,665
Active	SNYDER, SUSIE B. #2068W	42-227-35620	GRAYROCK ENERGY II, LLC	Injection	800	14,487	2,500–3,000
Active	CLAY, H. R. -B- #2D	42-227-00915	WASH, ROBERT C. INC	Injection	150	14,380	1,770–1,800
Active	T. X. L. -E- #11	42-227-01400	UNITED OIL & SHALE LLC	Injection	700	14,116	2,625–2,903
Active	ROBERTS, DORA -BDE- #467L	42-227-30731	BASA RES, INC	Injection	1,400	13,816	2,376–2,904
Active	SNYDER, D. H. #2879W	42-227-35548	GRAYROCK ENERGY II, LLC	Injection	400	13,626	2,550–3,050
Active	CHALK, OTIS #25W	42-227-35720	APC OPER PARTNERSHIP	Injection	1,500	13,281	2,700–3,400
Active	SNYDER, SUSIE B. #2040W	42-227-35460	GRAYROCK ENERGY II, LLC	Injection	800	13,001	2,500–3,000
Active	CLAY #54W	42-227-35643	GRAYROCK ENERGY II, LLC	Injection	1,000	12,855	2,200–3,300
Active	SNYDER, D. H., JR. #111W	42-227-35538	GRAYROCK ENERGY II, LLC	Injection	800	12,702	2,550–3,050
Active	DENMAN -A--JONES #16BW	42-227-04044	NEW HEIGHT ENERGY, LLC	Injection	900	12,475	2,702–2,780
Active	CLAPTON #1WD	42-227-37531	OCCIDENTAL PERMIAN LTD	Injection	10,000	12,469	3,650–4,095
Active	CLAY, H. R.-E- #73	42-227-36174	LANDMARK IP, LLC	Injection	1,000	12,205	2,000–2,600
Active	DODGE, G. M. #53W	42-227-31951	BCE-MACH III LLC	Injection	1,000	11,693	2,400–2,900
Active	CLAY, H. R.-E- #71	42-227-36173	LANDMARK IP, LLC	Injection	1,000	11,620	2,000–2,600
Active	HOMAN -29- #1 D	42-227-36810	DIAMONDBACK E&P LLC	Disposal	10,000	11,491	3,200–4,200
Active	DENMAN -K- #14	42-227-30786	UNITED OIL & SHALE LLC	Injection	600	11,167	2,502–2,880
Active	ABRAMS #4W	42-227-01843	UNITED OIL & SHALE LLC	Injection	300	10,682	2,284–2,743
Active	GUITAR CONSOLIDATED #1304	42-227-35745	APEX RESOURCES LLC	Injection	1,000	10,673	5,616–5,630
Active	T. X. L. -D- #22W	42-227-01415	UNITED OIL & SHALE LLC	Injection	0	9,512	2,600
Active	KLOH #51U	42-227-35502	GRAYROCK ENERGY II, LLC	Injection	1,500	9,156	1,700–2,300
Active	JONES, PERCY #41W	42-227-32369	WINN OPER, LLC	Injection	2,000	9,150	2,273–2,814

page 6 of 31 · 3,068 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.