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2 wells, subsea datum

West to east, 1.2 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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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA427 FT ELB408 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.

FormationARetzloff May-Mauch Krueger SABFoushee-Wright Keathley SA2
Queen City-2,190MD 2,617-2,361MD 2,769
Reklaw-2,744MD 3,171-2,936MD 3,344
Bartosh—-3,353MD 3,761
Carrizo-3,558MD 3,985-3,711MD 4,119
Wilcox-3,634MD 4,061-4,968MD 5,376
Navarro—-8,193MD 8,601
Anacacho-9,982MD 10,409-10,043MD 10,451
Austin Chalk-10,147MD 10,574-10,207MD 10,615

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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 · 427 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,617-2,190
Reklaw3,171-2,744
Carrizo3,985-3,558
WilcoxWILCOX - DISPOSAL4,061-3,634
AnacachoANACACHO - H2S10,409-9,982
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,574-10,147

Marathon Oil EF LLC · Atascosa · 408 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,769-2,361
Reklaw3,344-2,936
Bartosh3,761-3,353
Carrizo4,119-3,711
WilcoxWILCOX - DISPOSAL5,376-4,968
NavarroNAVARRO - H2S8,601-8,193
AnacachoANACACHO - H2S10,451-10,043
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,615-10,207

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.