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2 wells, subsea datum

West to east, 0.8 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 →

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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA395 FT ELB369 FT ELAnacachoAnacachoAustin ChalkAustin Chalk

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.

FormationADeatley Griffin May SA3BStubby C
Queen City-2,535MD 2,930—
Reklaw-3,117MD 3,512—
Carrizo-3,855MD 4,250—
Wilcox-3,926MD 4,321—
Anacacho-10,302MD 10,697-10,363MD 10,732
Austin Chalk-10,453MD 10,848-10,492MD 10,861

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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

Marathon Oil EF LLC · Atascosa · 395 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,930-2,535
Reklaw3,512-3,117
Carrizo4,250-3,855
WilcoxWILCOX - DISPOSAL4,321-3,926
AnacachoANACACHO - H2S10,697-10,302
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,848-10,453

BStubby C #3H 42-013-36124

Verdun Oil & Gas LLC · Atascosa · 369 ft elevation · 11,300 ft TD

FormationMD ftSubsea
AnacachoANACACHO - H2S10,732-10,363
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,861-10,492

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.