TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, under 0.1 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 FTA230 FT ELB231 FT ELQueen CityQueen CityReklawReklawCarrizoCarrizoWilcoxWilcoxAnacachoAnacachoAustin 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.

FormationAGuajillo Unit 15 SouthBGuajillo Unit 15 South
Queen City-2,511MD 2,741-2,510MD 2,741
Reklaw-2,864MD 3,094-2,863MD 3,094
Carrizo-3,498MD 3,728-3,497MD 3,728
Wilcox-4,925MD 5,155-4,924MD 5,155
Anacacho-10,136MD 10,366-10,140MD 10,371
Austin Chalk-10,385MD 10,615-10,385MD 10,616

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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 · 230 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,741-2,511
Reklaw3,094-2,864
Carrizo3,728-3,498
WilcoxWILCOX - DISPOSAL5,155-4,925
AnacachoANACACHO - H2S10,366-10,136
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,615-10,385

Marathon Oil EF LLC · Atascosa · 231 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,741-2,510
Reklaw3,094-2,863
Carrizo3,728-3,497
WilcoxWILCOX - DISPOSAL5,155-4,924
AnacachoANACACHO - H2S10,371-10,140
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,616-10,385

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.