Petrora

FORMATIONS · RRC WELLBORE FILE

Spraberry

Reported as a top in 57,510 wells across 36 counties, at a median depth of 7,140 ft (5,430 to 8,099 ft in most wells). 4,909 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 →

57.5K
wells reporting a top
4,909
permitted in last 3 years
36
counties
7,140
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
Midland
12,964
7,6817,096–8,1351,179
Martin
11,218
7,6076,825–8,2351,234
Upton
8,077
7,3346,720–7,799754
Reagan
7,129
6,0635,329–6,710644
Howard
5,295
6,2795,101–6,714419
Glasscock
4,532
6,5905,636–6,956259
Irion
1,967
4,7683,980–5,217105
Andrews
1,276
8,4088,164–8,61018
Dawson
1,203
7,3126,592–8,076125
Borden
1,153
6,0114,705–7,020110
Ector
1,049
7,9326,494–8,27326
Crockett
598
4,2083,181–5,5731
Garza
263
5,0104,777–5,6184
Sterling
183
4,7544,471–5,1000
Gaines
157
8,3517,610–8,7825
Terry
118
7,4356,800–7,8460
Tom Green
78
4,7204,340–4,9983
Scurry
64
4,8003,868–5,5005
Lynn
45
6,6555,876–7,0910
Schleicher
44
3,7292,963–4,5420
Crane
43
7,1426,406–8,0291
Mitchell
22
4,1933,925–4,49716
Yoakum
11
7,8187,333–9,0360
Hockley
6
7,3956,811–7,8620

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.1,2058,670
Diamondback E&P LLC5982,041
Endeavor Energy Resources L.P.2573,234
Ovintiv USA Inc.184516
XTO Energy Inc.1741,467
Apache Corporation1621,314
COG Operating LLC1611,949
DE IV Operating, LLC161299
DE IV Operating, LLC149149
Civitas Permian Operating, LLC145145
Highpeak Energy Holdings, LLC135392
Chevron U. S. A. Inc.1341,276
SM Energy Company125796
Surge Operating, LLC119692
Oxyrock Operating, LLC9999
Oxyrock Operating, LLC982,073
Summit Petroleum LLC89826
Firebird Energy II LLC8888
Triple Crown Resources, LLC75184
OXY USA WTP LP56549
Occidental Permian Ltd.48351
Hibernia Resources IV, LLC4242
Hannathon Petroleum II, LLC3755
Vital Energy, Inc.3753
Discovery Natural Resources LLC34253

Recently permitted wells reporting the Spraberry

BY LAST PERMIT ISSUED

Last permitLeaseOperatorCountyTop, ftAPI
Oct 9, 2026Tubb 39Surge Operating, LLCHoward5,75022736348
Oct 9, 2026Tubb 39Surge Operating, LLCHoward6,83322737425
Aug 21, 2026Hatton, Elmer Hoover Estate "O"Scout Energy Management LLCCrockett3,17210532307
Aug 19, 2026Midland 'AP' FeeTexaco E & P Inc.Midland7,49232933061
Aug 14, 2026Neal '14-B'Cox, John L.Upton7,20046132443
Jul 6, 2026Clayton, A. M. 'E' NCT-2Yukon Exploration Operating, LLCBorden5,90003300992
Jun 1, 2026Wolf Ranches 40-45 B UnitHighpeak Energy Holdings, LLCBorden4,71903332847
May 15, 2026Bulldog BPermian Deep Rock Oil Co., LLCMidland7,71332946538
May 13, 2026Pembrook UnitPioneer Natural Res. USA, Inc.Upton6,78746143628
May 11, 2026Brook B-14KPioneer Natural Res. USA, Inc.Upton6,82646143621
May 11, 2026Brook B-14LPioneer Natural Res. USA, Inc.Upton6,83246143622
May 11, 2026Brook B-14NPioneer Natural Res. USA, Inc.Upton6,81446143623
May 11, 2026Brook B-14OPioneer Natural Res. USA, Inc.Upton6,80546143624
May 11, 2026Brook A-W7IPioneer Natural Res. USA, Inc.Upton6,79946143634
May 11, 2026Brook A-W7LPioneer Natural Res. USA, Inc.Upton6,82046143636
May 11, 2026Brook A-W7MPioneer Natural Res. USA, Inc.Upton6,80746143637
May 11, 2026Brook A-W7NPioneer Natural Res. USA, Inc.Upton6,80546143638
May 8, 2026SRH 11 FApache CorporationReagan5,94538342347
May 7, 2026SRH 11 CApache CorporationReagan6,28938342345
May 7, 2026SRH 11 DApache CorporationReagan6,29238342346
May 7, 2026SRH 11 GApache CorporationReagan5,94338342348
May 6, 2026SRH 11 AApache CorporationReagan5,95238342343
May 6, 2026SRH 11 EApache CorporationReagan5,95338342344
May 6, 2026SRH 11 BApache CorporationReagan5,94338342356
May 5, 2026S. E. Black '42'Arco Oil & Gas Co.Glasscock6,84617331912

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/spraberry, documented in the API reference.