Edwards Formation

Operator-reported tops from 2,568 wells across 37 counties, median tops running 436–15,099 ft by county.

Top depth: 2,012 ft 12,184 ft

377 wells shown (sampled from 2,568)

Depth by County

County	Wells	Median Top	Typical Range	CSV
Caldwell	355	2,535 ft	1,860–2,850	↓
Guadalupe	267	2,520 ft	2,048–2,606	↓
Houston	173	10,088 ft	9,289–10,848	↓
Atascosa	167	10,230 ft	7,080–10,741	↓
Karnes	153	10,760 ft	10,630–13,452	↓
Burleson	146	6,850 ft	6,850–10,546	↓
Maverick	140	5,582 ft	3,407–6,036	↓
Webb	112	9,404 ft	8,800–9,770	↓
Leon	112	8,136 ft	7,701–8,630	↓
Madison	108	10,175 ft	9,598–10,755	↓
Bee	94	13,548 ft	13,403–13,778	↓
Lavaca	84	13,432 ft	13,185–13,813	↓
La Salle	82	10,212 ft	9,006–11,127	↓
De Witt	72	14,232 ft	13,722–14,553	↓
Fayette	64	11,900 ft	9,692–12,682	↓
Gonzales	51	9,310 ft	7,266–11,896	↓
Robertson	49	6,518 ft	5,089–7,273	↓
Dimmit	46	7,480 ft	6,195–8,720	↓
Milam	46	5,250 ft	1,100–6,424	↓
Live Oak	35	13,234 ft	12,784–13,850	↓
Mcmullen	33	11,250 ft	9,412–12,174	↓
Brazos	26	10,450 ft	2,200–12,940	↓
Nacogdoches	22	5,090 ft	4,662–6,161	↓
Wilson	16	5,154 ft	3,255–7,735	↓
Walker	13	11,870 ft	11,053–15,012	↓
Washington	12	12,508 ft	11,605–13,031	↓
Frio	11	6,700 ft	4,460–7,191	↓
Sutton	11	436 ft	1–718	↓
Lee	11	9,415 ft	6,980–9,555	↓
Bastrop	9	3,210 ft	2,485–4,157	↓
Grimes	8	10,804 ft	10,168–13,090	↓
Trinity	8	10,050 ft	8,200–10,956	↓
Zavala	8	6,990 ft	4,941–7,355	↓
Crockett	7	1,300 ft	1,218–5,270	↓
Shelby	6	3,798 ft	3,225–4,232	↓
San Augustine	6	5,586 ft	4,748–5,722	↓
Colorado	5	15,099 ft	14,095–15,574	↓

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.