TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, 0.4 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 FTA419 FT ELB402 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.

FormationATom Family-Retzloff SA2BMauch Tom Krueger SA2
Queen City-2,295MD 2,714-2,215MD 2,617
Reklaw-2,875MD 3,294-2,769MD 3,171
Carrizo-3,277MD 3,696-3,583MD 3,985
Wilcox-3,625MD 4,044-3,659MD 4,061
Olmos-8,635MD 9,054—
Anacacho-10,026MD 10,445-10,007MD 10,409
Austin Chalk-10,189MD 10,608-10,167MD 10,569

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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 · 419 ft elevation · 26,000 ft TD

FormationMD ftSubsea
Queen City2,714-2,295
Reklaw3,294-2,875
Carrizo3,696-3,277
WilcoxWILCOX - DISPOSAL4,044-3,625
OlmosOLMOS - DISPOSAL9,054-8,635
AnacachoANACACHO - H2S10,445-10,026
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,608-10,189

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

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.