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2 wells, subsea datum

West to east, 0.7 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 FTA402 FT ELB389 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.

FormationAMauch Tom Krueger SA2BRetzloff-Tom Unit
Queen City-2,215MD 2,617—
Reklaw-2,769MD 3,171—
Carrizo-3,583MD 3,985—
Wilcox-3,659MD 4,061—
Anacacho-10,007MD 10,409-10,111MD 10,500
Austin Chalk-10,167MD 10,569-10,271MD 10,660
Austin Chalk—-10,271MD 10,660
Eagle Ford—-10,398MD 10,787
Eagleford—-10,481MD 10,870

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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 · 402 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,617-2,215
Reklaw3,171-2,769
Carrizo3,985-3,583
WilcoxWILCOX - DISPOSAL4,061-3,659
AnacachoANACACHO - H2S10,409-10,007
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,569-10,167

BRetzloff-Tom Unit #1H 42-013-34409

Marathon Oil EF LLC · Atascosa · 389 ft elevation · 16,000 ft TD

FormationMD ftSubsea
Anacacho10,500-10,111
Austin ChalkAUSTIN10,660-10,271
Austin Chalk10,660-10,271
Eagle Ford10,787-10,398
Eagle FordEAGLEFORD10,870-10,481

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.