Tubb Formation

Operator-reported tops from 9,303 wells across 34 counties, median tops running 1,300–7,313 ft by county.

Top depth: 2,786 ft 7,179 ft

1,311 wells shown (sampled from 9,303)

Depth by County

County	Wells	Median Top	Typical Range	CSV
Andrews	1,923	6,492 ft	6,053–6,900	↓
Ector	1,780	5,972 ft	5,805–6,155	↓
Gaines	1,457	7,006 ft	6,670–7,283	↓
Midland	1,363	4,319 ft	4,017–4,660	↓
Ward	368	5,213 ft	4,600–6,137	↓
Yoakum	327	7,313 ft	6,873–7,609	↓
Pecos	297	3,200 ft	2,800–3,859	↓
Hockley	252	6,742 ft	6,390–6,950	↓
Potter	236	1,545 ft	1,332–1,753	↓
Terry	220	7,154 ft	6,926–7,330	↓
Moore	161	1,570 ft	1,379–1,861	↓
Hale	133	5,173 ft	5,053–5,415	↓
Winkler	120	6,052 ft	5,798–6,196	↓
Mitchell	96	2,620 ft	2,000–2,940	↓
Howard	70	3,640 ft	3,552–3,780	↓
Lamb	67	5,269 ft	5,159–5,814	↓
Sherman	65	1,868 ft	1,738–2,022	↓
Lubbock	57	5,622 ft	5,339–5,849	↓
Kent	47	2,770 ft	2,087–2,832	↓
Hartley	47	2,264 ft	2,030–2,832	↓
Scurry	47	3,120 ft	2,730–3,540	↓
Coke	40	1,989 ft	1,898–2,060	↓
Glasscock	21	3,876 ft	3,550–5,478	↓
Hutchinson	19	1,355 ft	1,200–1,667	↓
Sterling	17	2,865 ft	2,409–3,319	↓
Nolan	14	2,076 ft	1,751–2,272	↓
Dickens	11	2,651 ft	1,840–2,795	↓
Oldham	10	2,710 ft	2,115–2,988	↓
Cochran	9	6,140 ft	6,045–6,876	↓
Garza	6	3,164 ft	3,086–3,318	↓
Crockett	6	3,154 ft	3,096–4,440	↓
Upton	6	4,606 ft	3,757–6,054	↓
Gray	6	1,300 ft	1,253–1,446	↓
Motley	5	2,292 ft	2,270–2,309	↓

Counties with fewer than 5 wells omitted. Depths are measured depth as filed; typical range is the 10th–90th percentile of reported tops — raw filings contain occasional typo depths, so extremes are not shown.