Smithwick Formation

Operator-reported tops from 771 wells across 19 counties, median tops running 212–6,909 ft by county.

Top depth: 212 ft 5,531 ft

21 wells shown (sampled from 771)

Depth by County

County	Wells	Median Top	Typical Range	CSV
Johnson	157	6,909 ft	5,939–7,218	↓
Tarrant	157	6,550 ft	5,706–7,323	↓
Stephens	99	3,138 ft	3,016–3,304	↓
Parker	85	5,700 ft	5,523–6,351	↓
Young	62	3,752 ft	3,392–4,086	↓
Throckmorton	46	4,359 ft	4,013–4,760	↓
Archer	40	4,692 ft	4,508–5,076	↓
Hood	26	5,023 ft	4,211–6,297	↓
Jack	17	4,410 ft	3,620–4,688	↓
Clay	16	5,646 ft	5,408–5,753	↓
Baylor	13	4,938 ft	4,698–5,122	↓
Palo Pinto	8	3,370 ft	3,092–3,638	↓
Eastland	8	3,074 ft	2,673–3,386	↓
Erath	8	4,371 ft	4,178–4,404	↓
Haskell	7	5,346 ft	5,346–5,532	↓
Hill	7	4,709 ft	4,669–5,479	↓
Shackelford	5	3,980 ft	3,634–4,221	↓
Wise	5	5,018 ft	4,659–5,393	↓
San Saba	5	212 ft	202–253	↓

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.