Petrora

FORMATIONS · RRC WELLBORE FILE

Tubb

Reported as a top in 9,336 wells across 45 counties, at a median depth of 6,040 ft (3,120 to 7,159 ft in most wells). 155 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 →

9.34K
wells reporting a top
155
permitted in last 3 years
45
counties
6,040
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
Andrews
1,924
6,4946,042–6,83814
Ector
1,780
5,9625,792–6,15418
Gaines
1,457
6,9866,651–7,2782
Crane
1,366
4,3003,999–4,66049
Ward
368
5,2264,600–6,15030
Yoakum
328
7,3146,888–7,6082
Pecos
297
3,2002,797–3,8592
Hockley
252
6,7356,388–6,9500
Potter
236
1,5451,332–1,7530
Terry
221
7,1546,926–7,3309
Moore
161
1,5701,378–1,8620
Hale
133
5,1735,053–5,4150
Winkler
121
6,0445,796–6,2024
Mitchell
97
2,6202,000–2,93914
Howard
70
3,6403,550–3,7810
Lamb
67
5,2785,161–5,8160
Sherman
65
1,8681,738–2,0220
Lubbock
57
5,6185,338–5,8550
Hartley
47
2,2322,029–2,7932
Kent
47
2,7702,087–2,8323
Scurry
47
3,1202,730–3,5400
Coke
40
1,9821,898–2,0600
Glasscock
21
3,8763,550–5,4780
Hutchinson
19
1,3311,194–1,6740
Sterling
17
2,8652,403–3,3260
Nolan
14
2,0761,751–2,2720
Dickens
11
2,6511,840–2,7951
Oldham
10
2,7102,115–2,9882
Cochran
9
6,1406,045–6,8760
Crockett
6
3,1483,095–3,8080
Garza
6
3,1643,086–3,3180
Gray
6
1,3001,253–1,4460
Upton
6
4,6063,757–6,0540
Motley
5
2,2922,270–2,3090

Operators

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

OperatorLast 3 yrsAll
Pitts Energy Co.2627
Blackbeard Operating, LLC18107
Burlington Res O & G Co-Midland13164
Saguaro Petroleum, LLC1316
Ring Energy, Inc.1230
Slant Operating, LLC639
Griffin Petroleum Company45
Gulf Oil Corp.3152
Southland Royalty Co.-Midland380
Williams Oil Company360
Texland Petroleum, L.P.360
OXY USA WTP LP347
Great Western Drlg. Co.331
White Rock Oil & Gas, LLC33
Comal Operating LLC33
Moriah Operating,llc33
XTO Energy Inc.2680
Shell Western E&P Inc.2245
Olsen Energy Inc.236
DDD Exploration, Inc.213
Bulldog Operating Company26
Arrow Oil & Gas, LLC25
Davis Southern Operating Co LLC23
Basin Oil & Gas Operating, LLC22
Admiral Permian Operating LLC22

Recently permitted wells reporting the Tubb

BY LAST PERMIT ISSUED

Last permitLeaseOperatorCountyTop, ftAPI
Oct 2, 2026Edwards, C. W., et ALPitts Energy Co.Ward5,06947533893
Sep 27, 2026Keystone Cattle Co. AWhiting Oil and Gas CorporationWinkler6,10049533339
Sep 18, 2026Edwards, Jack -H-Pitts Energy Co.Ward5,03547510370
Sep 15, 2026Edwards, C. W. et ALPitts Energy Co.Ward5,05847533833
Sep 10, 2026Edwards, Jno. et al BPitts Energy Co.Ward5,13247533944
Sep 2, 2026Edwards, Jack et ALPitts Energy Co.Ward5,02047510773
Aug 31, 2026Waddell, W. N. EtalBurlington Res O & G Co-MidlandCrane4,28110334611
Aug 27, 2026Edwards, C. W., et ALPitts Energy Co.Ward5,09447510037
Aug 26, 2026Edwards, Jack -J-Pitts Energy Co.Ward4,97747531860
Aug 21, 2026Fullerton Clearfork UnitXTO Energy Inc.Andrews6,52400346561
Aug 20, 2026Edwards, C. W. et ALPitts Energy Co.Ward5,07147533977
Aug 18, 2026Logsdon, Etal -B-Texland Petroleum, L.P.Andrews6,49400344975
Aug 17, 2026Edwards 4Williams Oil CompanyWard4,82047535276
Aug 13, 2026Edwards, Jack -L-Pitts Energy Co.Ward5,00047533646
Aug 10, 2026Edwards, C. W., et ALPitts Energy Co.Ward5,22447510041
Aug 4, 2026Edwards, C. W. et ALPitts Energy Co.Ward5,04947531983
Aug 4, 2026Hooker, L.H.Texland Petroleum, L.P.Yoakum7,36050131143
Jul 10, 2026Syndicate Fee AHCW Exploration, Inc.Crane4,16910332795
Jul 10, 2026Jno. Edwards et al 'B'Pitts Energy Co.Ward5,20247533958
Jul 10, 2026Edwards, Jno. et al 'B'Pitts Energy Co.Ward5,23847533959
Jul 10, 2026Edwards, Jno. et al 'B'Pitts Energy Co.Ward5,16347534003
Jul 7, 2026Edwards, Jno. et al BPitts Energy Co.Ward5,15247533930
Jul 2, 2026State-WaltonPennzenergy Exp. & Prod., L.L.C.Winkler5,89449505173
Jul 1, 2026Edwards, Jno. et al BPitts Energy Co.Ward5,13047533943
Jun 18, 2026Connell W.E. -A-Davis Southern Operating Co LLCEctor5,26813501616

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/tubb, documented in the API reference.