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2 wells, subsea datum

West to east, 1.5 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 →

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0-1,000-2,000-3,000-4,000-5,000-6,000SUBSEA FTA2,776 FT ELB2,779 FT ELSan Andres - Saltwater …San Andres - Saltwater FlowClear ForkClear ForkSpraberry UpperSpraberry UpperWolfcampWolfcamp

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.

FormationALong Shot UnitBHanks Family 7-7A-D
Yates209MD 2,567—
Grayburg-1,793MD 4,569—
San Andres - Saltwater Flow-1,907MD 4,683-1,677MD 4,456
San Andres-1,907MD 4,683—
Clear Fork-3,904MD 6,680-3,844MD 6,623
Spraberry Upper-4,724MD 7,500-4,680MD 7,459
Spraberry-4,724MD 7,500—
Spraberry Middle-4,990MD 7,766—
Jo Mill-5,325MD 8,101—
Spraberry Lower-5,678MD 8,454—
Dean-6,053MD 8,829—
Wolfcamp-6,203MD 8,979-6,166MD 8,945
Wolfcamp A-6,203MD 8,979—

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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

COG Operating LLC · Upton · 2,776 ft elevation · 12,000 ft TD

FormationMD ftSubsea
Yates2,567209
Grayburg4,569-1,793
San AndresSAN ANDRES - SALTWATER FLOW4,683-1,907
San Andres4,683-1,907
Clear ForkCLEARFORK6,680-3,904
SpraberrySPRABERRY UPPER7,500-4,724
Spraberry7,500-4,724
SpraberrySPRABERRY MIDDLE7,766-4,990
Jo Mill8,101-5,325
SpraberrySPRABERRY LOWER8,454-5,678
Dean8,829-6,053
Wolfcamp8,979-6,203
WolfcampWOLFCAMP A8,979-6,203

Parsley Energy Operations, LLC · Upton · 2,779 ft elevation · 9,605 ft TD

FormationMD ftSubsea
San AndresSAN ANDRES - SALTWATER FLOW4,456-1,677
Clear ForkCLEARFORK6,623-3,844
Spraberry7,459-4,680
Wolfcamp8,945-6,166

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.