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2 wells, subsea datum

West to east, 1.8 miles end to end. Depths are elevation minus measured depth, so tops line up regardless of surface terrain; a value above zero sits above sea level. Each formation filed in more than one well has its own color, joined between neighboring wells and shaded down to the next formation both filed; nothing is interpolated. Where tops come from →

AT.D. Maxwell Oil Well #412 tops×BPro #1H9 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA526 FT ELB341 FT ELNacatochNacatochPaluxyPaluxyRodessaRodessaPettetPettetTravis PeakTravis PeakCotton ValleyCotton Valley

shaded: a formation down to the next one filed in both wellsfiled in one well onlyhover a top or a name to pick out one formation

Tops by well

Subsea feet, with measured depth beneath; a dash where the well has no top filed for the formation.

FormationAT.D. Maxwell Oil WellBPro
Nacatoch-1,709MD 2,235-1,725MD 2,066
Blossum—-2,877MD 3,218
Fredricksburg—-3,050MD 3,391
Paluxy-3,744MD 4,270-3,746MD 4,087
Massive Anhydrite (marker)-5,474MD 6,000—
Rodessa-5,715MD 6,241-5,809MD 6,150
James Lime-6,204MD 6,730—
Pine Island Shale—-6,438MD 6,779
Petit-6,441MD 6,967—
Pettit-6,441MD 6,967—
Pettet-6,435MD 6,961-6,533MD 6,874
Travis Peak-6,784MD 7,310-6,906MD 7,247
Cotton Valley-8,739MD 9,265-8,820MD 9,161
Base of Cotton Valley Lime-8,971MD 9,497—
CV Taylor-9,994MD 10,520—

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Only wells with a location on file can be found by distance; a well with tops but no location can still be added by name or API number.

The tops, as filed

Diversified Production LLC · Rusk · 526 ft elevation · 12,000 ft TD

FormationMD ftSubsea
Nacatoch2,235-1,709
Paluxy4,270-3,744
Massive Anhydrite (marker)MASSIVE ANHYDRITE6,000-5,474
Rodessa6,241-5,715
James LimeJAMES6,730-6,204
PettitPETTET6,961-6,435
Petit6,967-6,441
Pettit6,967-6,441
Travis Peak7,310-6,784
Cotton Valley9,265-8,739
Cotton ValleyBASE OF COTTON VALLEY LIME9,497-8,971
CV Taylor10,520-9,994

BPro #1H 42-401-35472

KJ Energy, LLC · Rusk · 341 ft elevation · 10,505 ft TD

FormationMD ftSubsea
Nacatoch2,066-1,725
Blossum3,218-2,877
Fredricksburg3,391-3,050
Paluxy4,087-3,746
Rodessa6,150-5,809
Pine Island Shale6,779-6,438
PettitPETTET6,874-6,533
Travis Peak7,247-6,906
Cotton Valley9,161-8,820

About this data

Formation tops and elevations from the RRC dbf900 wellbore file (completion filings), names normalized to the formations registry; well identity from the permit record, location from the shared well record. Subsea is elevation minus measured depth. Nothing between filed tops is estimated.

New to these records? completion reports and the wellbore file

Developers: this page as JSON is GET /v1/data/cross-section, documented in the API reference.