Oakville Formation

Operator-reported tops from 1,375 wells across 18 counties, median tops running 1–4,075 ft by county.

Top depth: 1,244 ft 3,429 ft

148 wells shown (sampled from 1,375)

Depth by County

County	Wells	Median Top	Typical Range	CSV
Refugio	853	2,750 ft	2,750–3,300	↓
San Patricio	113	3,250 ft	2,190–3,700	↓
Victoria	81	2,388 ft	1,585–3,750	↓
Nueces	65	3,550 ft	2,600–4,000	↓
Bee	45	1,855 ft	585–2,590	↓
Fayette	35	638 ft	516–683	↓
Austin	35	913 ft	160–1,102	↓
Wharton	33	391 ft	280–3,400	↓
Goliad	25	1,880 ft	1–2,897	↓
Jim Wells	23	2,030 ft	769–2,200	↓
Duval	16	565 ft	176–1,370	↓
Brazoria	9	4,028 ft	3,326–5,544	↓
Calhoun	8	1 ft	1–4,104	↓
Brooks	8	1,354 ft	1,191–2,260	↓
Hidalgo	8	4,075 ft	3,367–4,194	↓
De Witt	7	2,600 ft	1,295–2,978	↓
Colorado	6	858 ft	300–3,025	↓
Live Oak	5	470 ft	379–1,106	↓

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.