Lamar Formation

Operator-reported tops from 2,570 wells across 6 counties, median tops running 2,375–5,056 ft by county.

Export All Tops (CSV)
Top depth: 1,500 ft 5,227 ft
916 wells shown (sampled from 2,570)

Depth by County

CountyWellsMedian TopTypical RangeCSV
Reeves8504,722 ft2,794–5,180
Ward6464,853 ft4,697–5,123
Culberson4532,375 ft1,436–2,548
Loving4364,555 ft3,368–4,953
Pecos1274,828 ft4,578–5,250
Winkler585,056 ft4,869–5,149

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.

Most Active Operators

PERMIAN RESOURCES OPERATING, LLC 105 wells · 105 recent
CHEVRON U. S. A. INC. 364 wells · 81 recent
EOG RESOURCES, INC. 28 wells · 27 recent
VITAL ENERGY, INC. 16 wells · 16 recent
CIMAREX ENERGY CO. OF COLORADO 50 wells · 14 recent
U.S. ENERGY DEVELOPMENT CORP 12 wells · 12 recent
JETTA OPERATING COMPANY, INC. 97 wells · 11 recent
GREENLAKE ENERGY OPERATING, LLC 26 wells · 11 recent
PERMIAN RESOURCES OPERATING, LLC 18 wells · 11 recent
DIAMONDBACK E&P LLC 54 wells · 8 recent
CALLON PETROLEUM OPERATING CO 50 wells · 8 recent
TAP ROCK OPERATING, LLC 8 wells · 8 recent

Ranked by wells permitted in the last 3 years with this formation on file.