Haynesville Formation

Operator-reported tops from 1,668 wells across 15 counties, median tops running 10,500–14,804 ft by county.

Top depth: 9,723 ft 14,790 ft

741 wells shown (sampled from 1,668)

Depth by County

County	Wells	Median Top	Typical Range	CSV
Panola	539	10,500 ft	9,727–11,015	↓
San Augustine	365	13,072 ft	11,968–14,053	↓
Nacogdoches	203	13,013 ft	11,986–13,759	↓
Shelby	143	11,928 ft	11,214–12,577	↓
Harrison	143	10,789 ft	9,773–11,354	↓
Angelina	87	14,804 ft	14,148–15,710	↓
Upshur	70	11,624 ft	11,462–11,729	↓
Rusk	29	11,373 ft	11,121–11,678	↓
Freestone	27	11,900 ft	11,087–14,376	↓
Gregg	20	11,475 ft	11,381–11,627	↓
Smith	15	11,974 ft	11,670–12,244	↓
Rains	9	12,068 ft	11,438–12,334	↓
Robertson	7	14,116 ft	13,453–14,989	↓
Wood	6	12,014 ft	11,752–12,586	↓
Marion	5	10,717 ft	10,641–11,357	↓

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.