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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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-0-2,000-4,000-6,000-8,000-10,000-12,000SUBSEA FTA445 FT ELB445 FT ELQueen CityQueen CityReklawReklawCarrizoCarrizoWilcoxWilcoxAustin 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.

FormationAOlson-Esse Unit ACBOlson-Esse Unit
Sparta—-3,129MD 3,574
Queen City-3,560MD 4,005-3,560MD 4,005
Reklaw-3,949MD 4,394-3,949MD 4,394
Carrizo-4,939MD 5,384-4,939MD 5,384
Wilcox-5,015MD 5,460-5,015MD 5,460
Anacacho—-12,004MD 12,449
Austin Chalk-12,154MD 12,599-12,110MD 12,555
Eagle Ford—-12,205MD 12,650

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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 · Karnes · 445 ft elevation · 26,000 ft TD

FormationMD ftSubsea
Queen City4,005-3,560
Reklaw4,394-3,949
Carrizo5,384-4,939
WilcoxWILCOX - DISPOSAL5,460-5,015
Austin ChalkAUSTIN CHALK - H2S12,599-12,154

BOlson-Esse Unit #3H 42-255-37798

Marathon Oil EF LLC · Karnes · 445 ft elevation · 26,000 ft TD

FormationMD ftSubsea
Sparta3,574-3,129
Queen City4,005-3,560
Reklaw4,394-3,949
Carrizo5,384-4,939
WilcoxWILCOX - DISPOSAL5,460-5,015
Anacacho12,449-12,004
Austin ChalkAUSTIN CHALK - H2S12,555-12,110
Eagle FordEAGLE FORD - H2S12,650-12,205

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.