TOOLS · CROSS-SECTION · TEXAS

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 FTA426 FT ELB430 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.

FormationAChapman Rothe UnitBKellner Jonas-Mutz Unit SA4
Queen City-2,457MD 2,883-2,483MD 2,913
Reklaw-3,032MD 3,458-3,254MD 3,684
Bartosh-3,285MD 3,711—
Carrizo-3,703MD 4,129-3,758MD 4,188
Wilcox-5,119MD 5,545-4,097MD 4,527
Navarro-8,269MD 8,695—
Olmos-8,656MD 9,082—
Anacacho-10,000MD 10,426-10,181MD 10,611
Austin Chalk-10,132MD 10,558-10,332MD 10,762

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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 · 426 ft elevation · 16,500 ft TD

FormationMD ftSubsea
Queen City2,883-2,457
Reklaw3,458-3,032
Bartosh3,711-3,285
Carrizo4,129-3,703
WilcoxWILCOX - DISPOSAL5,545-5,119
NavarroNAVARRO - H2S8,695-8,269
OlmosOLMOS - DISPOSAL9,082-8,656
AnacachoANACACHO - H2S10,426-10,000
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,558-10,132

Marathon Oil EF LLC · Atascosa · 430 ft elevation · 24,000 ft TD

FormationMD ftSubsea
Queen City2,913-2,483
Reklaw3,684-3,254
Carrizo4,188-3,758
WilcoxWILCOX - DISPOSAL4,527-4,097
AnacachoANACACHO - H2S10,611-10,181
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,762-10,332

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.