Petrora

FORMATIONS · RRC WELLBORE FILE

Wolfcamp

Reported as a top in 57,599 wells across 91 counties, at a median depth of 8,323 ft (3,870 to 10,316 ft in most wells). 2,668 of those wells were permitted in the last three years.

A well counts if any of its completion filings report this formation, whether it produces from it or drilled through it. Depths are measured depth as filed; typo depths exist, which is why ranges are percentiles, not extremes. About completion reports →

57.6K
wells reporting a top
2,668
permitted in last 3 years
91
counties
8,323
median top, ft

COMPUTED OCT 29, 2026 · REBUILT DAILY

Depth by county

Counties with at least five wells reporting the top. Bars are well counts.

CountyWellsMedian, ftP10–P90Last 3 yrs
Upton
6,341
8,8168,153–9,207439
Martin
6,329
9,0718,352–9,694474
Reeves
5,262
10,2839,388–10,622302
Sutton
4,274
3,0131,834–3,93813
Reagan
3,868
7,5286,817–8,156456
Midland
3,565
9,2528,792–9,58624
Loving
3,043
11,40710,504–12,029352
Irion
2,978
5,9804,900–6,524109
Howard
2,625
7,5566,534–8,07713
Glasscock
2,478
7,7046,579–8,39612
Andrews
2,256
8,9807,891–9,87220
Crockett
2,141
5,2463,871–6,23835
Scurry
1,903
4,8084,496–5,09757
Ector
1,269
9,1197,697–9,49117
Culberson
1,183
8,8137,694–9,262173
Sterling
1,076
6,3405,206–7,5404
Pecos
917
4,8352,099–9,7553
Schleicher
762
4,5443,482–5,3202
Terrell
547
4,9303,192–5,8011
Ward
492
10,8987,260–11,42719
Borden
469
6,7536,006–7,47824
Crane
462
5,7995,222–7,98725
Tom Green
325
6,0664,115–6,5146
Dawson
313
9,0868,338–9,6009
Gaines
239
9,2108,507–9,9664
Yoakum
233
9,0128,688–9,6360
Winkler
219
8,0387,170–11,84810
Kent
210
4,0493,826–5,30017
Edwards
205
1,6061,170–2,3050
Terry
128
9,2658,400–9,9860
Mitchell
125
4,9603,743–5,41420
Garza
117
5,9664,600–6,8617
Roberts
108
4,0003,579–4,5891
Hockley
90
8,3237,774–9,3004
Throckmorton
79
790600–1,0402
Moore
78
3,0922,928–3,4840
Val Verde
72
2,2781,195–3,2070
Nolan
67
2,9802,602–3,5912
Hansford
65
3,1522,825–4,1180
Potter
62
4,3823,355–6,3311
Ochiltree
61
3,4003,252–3,7470
Coke
58
3,8602,842–4,7065
Hartley
55
3,7043,443–4,7142
Hemphill
38
4,0693,900–4,8420
Lipscomb
38
3,3743,294–3,8800
Oldham
34
5,3304,487–5,9172
Hutchinson
30
2,9682,754–3,3240
Shackelford
26
550232–7621
Lamb
22
6,4135,779–6,7560
Carson
21
2,9132,494–3,8500
Cochran
20
8,8658,293–9,3000
Gray
20
2,6652,264–2,9070
Hale
20
6,0885,531–6,9080
Lynn
20
8,4827,250–8,8720
Wheeler
17
4,2294,042–4,8550
Stonewall
16
2,0141,608–2,6990
Fisher
15
4,6982,232–6,7470
Motley
12
3,5943,301–4,1170
Hudspeth
9
4,2984,298–4,5730
Cottle
8
4,3013,636–19,1200
Floyd
8
5,2424,795–6,1220
Foard
8
2,1801,878–3,8380
King
8
1,9621,608–3,4900
Lubbock
8
7,3525,447–8,3680
Sherman
8
3,0382,620–3,1980
Real
7
2,1831,694–2,2970

Operators

Current operator of record for wells reporting the top, ranked by wells permitted in the last three years.

OperatorLast 3 yrsAll
Pioneer Natural Res. USA, Inc.3774,253
Diamondback E&P LLC189728
Anadarko E&P Onshore LLC1411,077
DE IV Operating, LLC137137
Civitas Permian Operating, LLC119119
Triple Crown Resources, LLC104218
Coterra Energy Operating Co.98694
Chevron U. S. A. Inc.961,353
DE IV Operating, LLC85122
EOG Resources, Inc.68937
Permian Resources Operating, LLC6874
BPX Operating Company61213
Apache Corporation541,619
Endeavor Energy Resources L.P.531,364
COG Operating LLC501,763
Ovintiv USA Inc.49100
Kinder Morgan Sacroc LP45833
Occidental Permian Ltd.43424
Pdeh LLC4085
Petro-Hunt Permian, LLC3657
XTO Energy Inc.32654
Sem Operating Company LLC32215
Firebird Energy II LLC3232
SM Energy Company31316
TRP Operating LLC28120

Recently permitted wells reporting the Wolfcamp

BY LAST PERMIT ISSUED

Last permitLeaseOperatorCountyTop, ftAPI
Oct 14, 2026Frazier, W.G.Occidental Permian EOR, LLCHockley8,56321931844
Oct 9, 2026Tubb 39Surge Operating, LLCHoward7,10022736348
Sep 30, 2026San Quentin 76 2932XTO Energy Inc.Loving11,75830134691
Sep 23, 2026S. W. Ratliff '2526'Slant Operating, LLCEctor8,80013541938
Aug 21, 2026Hatton, Elmer Hoover Estate "O"Scout Energy Management LLCCrockett4,97010532307
Aug 14, 2026Neal '14-B'Cox, John L.Upton8,23046132443
Aug 6, 2026RichardGaedeke Oil & Gas Operating, LLCRunnels1,70539935323
Jun 18, 2026Connell W.E. -A-Davis Southern Operating Co LLCEctor6,64213501616
Jun 17, 2026Adair San Andres UnitHilcorp Energy CompanyGaines8,38216500356
Jun 3, 2026Salt Creek Field UnitOXY USA WTP LPKent3,75526332154
Jun 2, 2026Eagle Draw '11'Walsh & Watts, Inc.Crockett4,86010538575
May 29, 2026Rough Rider UnitScout Energy Management LLCReeves10,20238934864
May 19, 2026ParramoreAmpak Oil CompanySterling3,99843131461
May 15, 2026Parker, J. E. "Z"Union Oil Company of CaliforniaAndrews8,60000337616
May 13, 2026Waddell, W.N. et ALGulf Oil Corp.Crane5,61710332222
May 11, 2026Brook B-14KPioneer Natural Res. USA, Inc.Upton8,38946143621
May 11, 2026Brook B-14LPioneer Natural Res. USA, Inc.Upton8,39446143622
May 11, 2026Brook B-14NPioneer Natural Res. USA, Inc.Upton8,37846143623
May 11, 2026Brook B-14OPioneer Natural Res. USA, Inc.Upton8,37446143624
May 11, 2026Brook A-W7IPioneer Natural Res. USA, Inc.Upton8,37046143634
May 11, 2026Brook A-W7LPioneer Natural Res. USA, Inc.Upton8,37146143636
May 11, 2026Brook A-W7MPioneer Natural Res. USA, Inc.Upton8,35946143637
May 11, 2026Brook A-W7NPioneer Natural Res. USA, Inc.Upton8,36246143638
May 7, 2026SRH 11 DApache CorporationReagan7,52538342346
May 7, 2026SRH 11 HApache CorporationReagan7,52638342349

About this data

Formation tops, elevations, perforations, and casing from the RRC dbf900 wellbore file, refreshed weekly, with reported names normalized to Petrora's formation registry. County and operator breakdowns are rebuilt nightly.

Developers: this page as JSON is GET /v1/data/formations/wolfcamp, documented in the API reference.