Stored formation/play groups ranked by recorded well count, with recorded operators and primary counties. Coverage is limited to the groups included below.
Buckhead Energy analysis of public oil and gas data. Daily refresh scheduled. Stored source refresh: 2026-11-01.
Stored source refresh: 2026-11-01. Formation/play groups require at least 25 recorded wells and a known operator; the directory shows at most 50 groups ranked by well count. Operator counts reflect distinct recorded operator names, not verified current operations. Permit counts use the preceding 24 months at summary refresh. Grouping can represent a formation, play or basin; it is not an inventory of every geological formation. Figures are Buckhead Energy analysis of public oil and gas data; counts under 3 wells are withheld.
Buckhead Energy analysis of public oil and gas data. Scheduled refreshes do not guarantee that new regulator filings are available; the state regulator remains the record of any specific well.
Quick answer: The highest well-count groups listed for Texas are the Barnett, Permian Basin, Gulf Coast Basin (La - Tx), Austin Chalk and Thirty-One Carbonate-Chert, led by the Barnett with 156,159 wells on record. Ranked by well count across 41 tracked formations from Buckhead Energy analysis of public oil and gas data. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
The highest well-count groups listed for Texas are the Barnett, Permian Basin, Gulf Coast Basin (La - Tx), Austin Chalk and Thirty-One Carbonate-Chert, led by the Barnett with 156,159 wells on record. Ranked by well count across 41 tracked formations from Buckhead Energy analysis of public oil and gas data. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
Top Operators:
Bkv Barnett LLC (5,169), Eagleridge Operating (3,902), Tep Barnett (2,727), Bkv North Texas LLC (2,085), Basa Resources (1,389), Chesapeake Energy (1,284), Bkv Barnett Ii, LLC (1,135), Upp Operating LLC (1,102), Mitchell Energy (1,097), Formentera Operations LLC (1,089)
Primary counties: Archer, Young, Jack, Shackelford, Wise
Top Operators:
Oxy (9,050), Hilcorp Energy Company (6,888), Kinder Morgan Production (2,962), Bcemach Iii LLC (2,070), Citation Oil & Gas (1,737), Grayrock Energy Ii LLC (1,600), Apache (1,597), Pioneer Natural Resources (1,575), Lcs Production Company (1,550), Crescent Energy Operating, LLC (1,500)
Primary counties: Andrews, Howard, Ector, Scurry, Jones
Top Operators:
Hilcorp Energy Company (3,987), Exxon Mobil (3,351), Eog Resources (1,579), Denbury Onshore (1,096), Radco Operations (964), Poandg Operating (932), Tc Oil Company (893), Highmark Energy Operating (869), Burlington Resources Oil & Gas Company (798), Marathon Oil Company (705)
Primary counties: Wharton, Harris, Jackson, Refugio, Hardin
Top Operators:
Eog Resources (3,792), Magnolia Oil & Gas Operating (2,070), Wildfire Energy Operating LLC (1,701), Javelin Energy (1,605), Ineos USA Oil & Gas LLC (1,441), Burlington Resources Oil & Gas Company (1,408), Marathon Oil Company (1,392), Great Plains Resources (1,313), Texas Petroleum Investment Company (1,245), Devon Energy Production Company (1,055)
Primary counties: Bexar, Caldwell, Atascosa, Guadalupe, Milam
Top Operators:
Pioneer Natural Resources (8,700), Two P Partners LLC (3,875), Formentera Operations LLC (3,476), Scout Energy Management (3,278), Blackbeard Operating (3,178), Kinder Morgan Production (2,735), Diamondback Energy (2,592), Hilcorp Energy Company (2,515), Cog Operating (1,853), Apache (1,823)
Primary counties: Upton, Crane, Ector, Pecos, Midland
Top Operators:
Basa Resources (6,551), Diversified Production LLC (2,120), Tgnr East Texas LLC (1,523), Tgnr East Texas Ii LLC (996), Linder John Operating (897), Brookston Energy (832), Xto Energy (824), Eqv Operating LLC (740), 4sight Operating Company (658), Elms Oil Company (631)
Primary counties: Gregg, Rusk, Panola, Harrison, Wood
Top Operators:
Pioneer Natural Resources (6,252), Diamondback Energy (6,121), Ovintiv USA INC (1,478), Cog Operating (1,393), Apache (1,241), Discovery Natural Resources (916), Crescent Energy Operating, LLC (912), Oxyrock Operating, LLC (877), Endeavor Energy Resources (696), New Height Energy LLC (688)
Primary counties: Martin, Midland, Reagan, Howard, Glasscock
Top Operators:
Large Operating LLC (2,979), Bcemach Iii LLC (1,894), Presidio Petroleum (1,508), Mmgl Txph LLC (1,451), Unbridled Resources LLC (1,200), Burk Royalty (1,135), Ponderosa TX Operating (896), D10 Energy LLC (621), Petco Energy CORP (556), Pantera Energy Company (509)
Primary counties: Hutchinson, Gray, Hemphill, Wheeler, Carson
Top Operators:
Waggoner Operating,LLC (3,804), R2q Operating (1,600), Burk Royalty (943), Johnson & Ernst Operating Company (718), Quatro Oil And Gas (592), S&G Oil (559), Bastrop Oil & Gas (558), Newport Operating (394), Stephens & Johnson Operating Company (386), Olenox CORP (333)
Primary counties: Wichita, Wilbarger, Hardeman, Foard, Hartley
Top Operators:
Oxy (5,633), Hilcorp Energy Company (4,770), Bcemach Iii LLC (1,163), Crescent Energy Operating, LLC (1,024), Montare Operating LTD (956), Burk Royalty (818), Ring Energy (680), White Rock Oil & Gas (505), Texland Petroleum (491), Brown Geo R Lpthe (455)
Primary counties: Andrews, Yoakum, Hockley, Gaines, Cochran
Top Operators:
Upp Operating LLC (6,298), Scout Energy Management (2,625), Zarvona Energy (808), Red Stag Operating LLC (619), Hilcorp Energy Company (515), Discovery Natural Resources (500), Robert C Brower (459), R2q Operating (409), Dominion Oklahoma Texas E And P (396), Henry Petroleum (318)
Primary counties: Crockett, Sutton, Schleicher, Edwards, Terrell
Top Operators:
Diamondback Energy (2,534), Pioneer Natural Resources (1,535), Permian Resources Operating LLC (1,185), Apache (1,160), Crescent Energy Operating, LLC (1,037), Anadarko Petroleum (809), Ovintiv USA INC (782), Fasken Oil And Ranch (750), Oxyrock Operating, LLC (706), Xto Energy (675)
Primary counties: Martin, Howard, Glasscock, Midland, Reeves
Top Operators:
Anadarko Petroleum (1,438), Permian Resources Operating LLC (1,183), Apache (1,048), Wpx Energy (1,034), Eog Resources (772), Jetta Operating Company (710), Pdeh LLC (651), Chevron (572), Noble Energy (508), Echo Energy Partners, LLC (495)
Primary counties: Reeves, Loving, Ward, Culberson, Winkler
Top Operators:
Chittim Operating LLC (1,609), Javelin Energy (1,191), Marathon Oil Company (619), Crescent Energy Operating, LLC (427), Atlas Operating (408), Prime Energy Company (312), Burlington Resources Oil & Gas Company (245), Lewis Petro Properties (232), Hilcorp Energy Company (230), Sm Energy Company (178)
Primary counties: Dimmit, Duval, Goliad, Live Oak, Maverick
Top Operators:
Exxon Mobil (2,214), Merit Energy Company (1,535), Eog Resources (901), Hilcorp Energy Company (826), Sun Explorationproduction Company (598), Urban Oil & Gas Group (590), Sueann Operating LC (524), Mountain V Texas, LLC (305), Mobil Oil (264), Shell Oil Company (217)
Primary counties: Starr, Hidalgo, Nueces, Brooks, Kleberg
Top Operators:
Hilcorp Energy Company (2,717), Diversified Production LLC (1,953), Mmgl East Texas Ii, LLC (1,002), Basa Resources (950), Xto Energy (768), Faulconer Energy LLC (616), Valence Operating Company (528), Linder John Operating (314), Urban Oil & Gas Group (288), Exxon Mobil (283)
Primary counties: Freestone, Smith, Limestone, Wood, Rusk
Top Operators:
Bcemach Iii LLC (2,398), Hilcorp Energy Company (2,201), Oxy (1,685), Texland Petroleum (630), Crossroads Operating LLC (606), Juno Operating Company Ii (494), Basa Resources (489), Surge Operating (423), Grayrock Energy Ii LLC (347), Highmark Energy Operating (323)
Primary counties: Mitchell, Gaines, Crosby, Scurry, Ector
Top Operators:
Lewis Petro Properties (2,551), Crescent Energy Operating, LLC (619), Varas Energy Operating Company, LLC (615), Hilcorp Energy Company (534), Bpx Operating Company (421), Eog Resources (393), Petrovybe Opco LLC (324), Caturus Energy, LLC (321), Marathon Oil Company (285), Ineos USA Oil & Gas LLC (241)
Primary counties: Webb, Mcmullen, La Salle, Live Oak, Duval
Top Operators:
Corsicana Crude Company (553), Rife Oil Properties (497), J P Oil Company (472), Dry Creek Operating LLC (464), Exxon Mobil (428), Eastwest Energy (321), Adamas Energy LLC (268), Tgnr East Texas Ii LLC (207), Contour Energy (189), Sulphur River Exploration (162)
Primary counties: Navarro, Titus, Franklin, Falls, Wood
Top Operators:
Hilcorp Energy Company (3,095), Killam Oil (843), Conocophillips Company (494), Columbus Energy (454), Merit Energy Company (384), Mountain V Texas, LLC (288), Varas Energy Operating Company, LLC (242), Sueann Operating LC (232), Eog Resources (187), Chevron (184)
Primary counties: Webb, Zapata, Duval, Jim Hogg
Top Operators:
Burk Royalty (2,389), Pantera Energy Company (895), Snw Operating Company (709), Large Operating LLC (397), High River Resources Operating LLC (388), J W Resources (339), Phillips Petroleum Company (331), Conocophillips Company (223), Mewbourne Oil Company (203), D10 Energy LLC (183)
Primary counties: Moore, Potter, Sherman, Hutchinson, Hansford
Top Operators:
V & H Oil (702), Wfw Production Company (671), Felderhoff Production Company (568), Sydri Operating (448), Bls Production (355), Bkm Production (315), Silver Creek Oil & Gas (242), Mountain Creek Oil Company (223), Burk Royalty Company (199), Pyramid Enterprises (164)
Primary counties: Cooke, Grayson, Montague, Wichita, Collin
Top Operators:
Mewbourne Oil Company (800), Latigo Petroleum (794), Presidio Petroleum (548), Be Anadarko Ii LLC (433), Courson Oil & Gas (359), Unbridled Resources LLC (340), Highmark Energy Operating (321), Capturepoint LLC (223), Jones Energy (186), Diamond Chemicals Company (162)
Primary counties: Lipscomb, Ochiltree, Hansford, Hemphill, Nueces
Top Operators:
Basa Resources (714), Hd Operating CO, LLC (494), Wildfire Energy Operating LLC (341), Linder John Operating (284), Peles LLC (265), Caddo Energy (247), Highmark Energy Operating (204), Dg&E/Slocum (179), Union Oil Company Of California (168), Diversified Production LLC (149)
Primary counties: Anderson, Van Zandt, Cherokee, Robertson, Brazos
Top Operators:
Apache (489), Mcmoran Oil & Gas (307), White Fleet Operating LLC (285), Gom Shelf (242), Fieldwood Energy (230), W & T Offshore (174), Exxon Mobil (169), Black Elk Energy Offshore Operations (151), Talos Energy Offshore (150), Sabine Oil & Gas (145)
Primary counties: High Island South, High Island East & South, High Island Large Block, Matagorda Island Large Block, Galveston Large Block
Top Operators:
Peba Oil & Gas (928), R2q Operating (369), Hadley Oil Company (361), V & H Oil (319), Muirfield Exploration (298), Arch Operating (291), Mountain Creek Oil Company (256), Bridwell Oil Company (178), R & R Energy (156), Bkv Barnett LLC (119)
Primary counties: Montague, Clay, Denton, Jack, Wise
Top Operators:
Oxy (2,081), Aghorn Operating (467), Digital Operating Company LLC (227), Hilcorp Energy Company (202), Fasken Oil And Ranch (200), Scout Energy Management (181), Crescent Energy Operating, LLC (179), Basin Oil & Gas (160), Reverence Operating LLC (150), United Oil & Shale LLC (120)
Primary counties: Ector, Andrews, Reagan, Crockett, Howard
Top Operators:
Burk Royalty (333), Three R Oil Company (252), Bcemach Iii LLC (246), Rjd Management (199), Aviator Energy, LLC (193), Oilex Intl Investments (135), Citation Oil & Gas (126), Hilcorp Energy Company (110), Oxy (108), New Height Energy LLC (97)
Primary counties: Garza, Howard, Scurry, Gaines, Andrews
Top Operators:
Apache (244), Diamondback Energy (217), Durango Resources (212), Double Barrel Oil Company (147), Longfellow Energy (136), Xto Energy (104), Eog Resources (87), Stablerock Energy (75), Gordy Oil Company (73), Chevron (67)
Primary counties: Pecos, Reeves, Culberson, Ward, Val Verde
Top Operators:
Marathon Oil Company (509), Repsol Oil & Gas Canada (276), Pioneer Natural Resources (168), Blackbrush O & G (88), Capital Star Oil & Gas (87), Burlington Resources Oil & Gas Company (82), Bpx Operating Company (81), Devon Energy Production Company (81), Trio Consulting & Managementllc (54), Rusk Energy Operating (52)
Primary counties: Karnes, De Witt, Lavaca, Colorado, Bee
Top Operators:
Rigged Up, LLC (202), Waggoner Operating,LLC (98), Apex Resources (72), Stasney Well Service (69), Bold Oil And Gas LLC (48), Stephens & Johnson Operating Company (48), Texian Operating Company LLC (46), Basa Resources (44), Wt Waggoner Estate (43), Schkade Production Company (41)
Primary counties: Shackelford, Archer, Baylor, Young, Stephens
Top Operators:
Diamondback Energy (575), Ovintiv USA INC (198), Apache (139), Pioneer Natural Resources (118), Cog Operating (91), Xto Energy (66), Hibernia Resources Iv, LLC (61), New Height Energy LLC (54), Oxy (54), Sm Energy Company (53)
Primary counties: Martin, Reagan, Dawson, Howard, Glasscock
Top Operators:
National Land Resources (151), 1859 Operating LLC (128), Thompsoncarlile Ventures (75), Dixie Energy (61), Wilson Roger B (49), Slick (40), Mixon Robert N (38), Snd Operating (37), Kiowa Oil & Gas (33), Bosque Oil Company (33)
Primary counties: Ellis, Red River, Mclennan, Medina, Hill
Top Operators:
Dallas Production (77), Somerset Operating, LLC (55), Upham Oil & Gas Company (48), Taylor Ben J (45), Arrowhead Production (43), Rkw Operating (38), Devon Energy Production Company (31), Mitchell Energy (29), Raw Energy (27), Eog Resources (25)
Primary counties: Parker, Palo Pinto, Jack
Top Operators:
Oxy (134), Hilcorp Energy Company (72), Bcemach Iii LLC (71), Crescent Energy Operating, LLC (70), Eagle Natural Resources LLC (55), Conocophillips Company (54), Lynx Operating (42), Oneok Exploration Company (35), Montare Operating LTD (29), Hicon Gas Producers (28)
Primary counties: Andrews, Gaines, Howard, Mitchell, Ector
Top Operators:
Burk Royalty (87), Coterra Energy INC (75), Manzano (71), Hunt Cimarron (70), Q Natural Resources LLC (57), Capitan Energy Incorporated (56), Db Oil Company (31), Team Operating LLC (23), Ring Energy (23), Permian Resources Operating LLC (23)
Primary counties: Winkler, Culberson, Yoakum, Cochran, Reeves
Top Operators:
Felderhoff Production Company (63), Geosurveys (28), Sullivan Hollis R (23), Bruno Earl R (14), Aeternum Energy LLC (13), Bowerman Energy Company (12), Quaise Energy INC (10), B&B Aceite (10), Bowerman Oil & Gas (9), Sunbelt Exploration (8)
Primary counties: Mcculloch, San Saba, Burnet, Gillespie, Mason
Top Operators:
Tep Barnett (126), Sage Natural Resources (19), Gha Barnett (16), Quicksilver Resources (9), Bkv North Texas LLC (7), Chesapeake Energy (7), Eagleridge Operating (7), Upp Operating LLC (5), Morris R Greenhaw Oil&Gas (3), Delta Oil & Gas (—)
Primary counties: Tarrant, Johnson, Erath, Somervell, Wise
Top Operators:
Esco Oil Operating Company (22), Dry Fork Production (8), Sabine Production Company (8), Tyner Texas Operating Company (6), Bass Petroleum (5), West Texas Royalties (4), Apollo Energy Operating Company (3), Enre (3), Chevron (—), Patton Exploration (—)
Primary counties: Motley, Floyd, Hale, Hall
Top Operators:
Riotex (17), Cashflow Exploration (7), C & C Energy Company (6), Sk & CO Oil & Gas Oper (5), Everest Minerals (5), Claro Operating (4), Mrt Exploration Company (3), Gose Steve (3), Devon Energy Production Company (3), Stokes King (3)
Primary counties: Kerr, Real, Bandera, Kendall
Top Operators:
Newfield Exploration Midcon (12), Machiiross Petroleum Company (8), Grace Oil (7), Texcan Resources (6), Windstar Resources (4), Winn Exploration (4), West Texas Gas (3), Cities Service Oil Company (—), Belco Energy (—), Txco Resources (—)
Primary counties: Maverick
Source: Buckhead Energy analysis of public oil and gas data, aggregated by primary play / interpreted formation / basin.
Threshold: Groups require at least 25 recorded wells and a known operator. The directory shows up to 50 groups by well count; omitted groups are not evidence of no activity.
Owner context: These formation summaries describe reported activity. They do not establish ownership, payment entitlement or a value for an individual tract.
Refresh cadence: Daily refresh scheduled. Stored source refresh: 2026-11-01.
The highest well-count formation/play groups listed for Texas are the Barnett, Permian Basin, Gulf Coast Basin (La - Tx), Austin Chalk and Thirty-One Carbonate-Chert, among others. This directory tracks 41 recorded formation/play groups ranked by well count, per Buckhead Energy analysis of public oil and gas data. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
The Barnett has the most wells among the listed Texas groups — 156,159 wells, worked by 10,393 recorded operators, per Buckhead Energy analysis of public oil and gas data. This is a well-count ranking, not a reserves or value ranking. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
The operators with the most wells on record in the Barnett are BKV Barnett LLC, Eagleridge Operating, Tep Barnett, BKV North Texas LLC, BASA Resources. Each formation card below lists its top operators by well count. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
A complete permit total is unavailable because one or more listed formation groups has an unknown permit count. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
Your deed and county records determine which formations your mineral rights cover; a tract can own multiple stacked formations. This directory is informational only, not a valuation. Stored source refresh: 2026-11-01. These are limited stored records; reporting windows are evaluated at source refresh.
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Get Your Free Written OfferState: Texas
Active formations: 41
Total wells: 1,012,427
Recent permits: —
Last refresh: 2026-11-01
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