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2 wells, subsea datum

West to east, 3.2 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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2,0001,000-0-1,000-2,000-3,000-4,000SUBSEA FTA2,402 FT ELB2,264 FT ELGrayburgGrayburgSan AndresSan AndresClear ForkClear ForkSpraberrySpraberryWolfcampWolfcampCanyonCanyon

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.

FormationAMcCulloughBWinterbotham A-114
Grayburg1,602MD 8002,014MD 250
San Andres1,402MD 1,0001,584MD 680
Clear Fork252MD 2,150-336MD 2,600
Spraberry-1,148MD 3,550-686MD 2,950
Wolfcamp-2,498MD 4,900-2,036MD 4,300
Canyon-3,998MD 6,400-3,666MD 5,930

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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

AMcCullough #1 42-235-36634

Walter Oil & Gas Corporation · Irion · 2,402 ft elevation · 7,600 ft TD

FormationMD ftSubsea
Grayburg8001,602
San Andres1,0001,402
Clear ForkCLEARFORK2,150252
Spraberry3,550-1,148
Wolfcamp4,900-2,498
Canyon6,400-3,998

Walter Oil & Gas Corporation · Irion · 2,264 ft elevation · 6,600 ft TD

FormationMD ftSubsea
Grayburg2502,014
San Andres6801,584
Clear ForkCLEARFORK2,600-336
Spraberry2,950-686
Wolfcamp4,300-2,036
Canyon5,930-3,666

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.