TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, 0.6 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 FTA449 FT ELB454 FT ELQueen CityQueen CityReklawReklawCarrizoCarrizoWilcoxWilcoxAustin ChalkAustin ChalkEagle FordEagle Ford

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.

FormationAScheele Huth a-Hedtke SABHedtke-Henke Unit
Queen City-3,153MD 3,602-3,166MD 3,620
Reklaw-3,766MD 4,215-3,759MD 4,213
Carrizo-4,297MD 4,746-4,262MD 4,716
Wilcox-4,362MD 4,811-4,345MD 4,799
Austin Chalk-10,979MD 11,428-10,972MD 11,426
Eagle Ford-11,171MD 11,620-11,169MD 11,623

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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 · 449 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City3,602-3,153
Reklaw4,215-3,766
Carrizo4,746-4,297
WilcoxWILCOX - DISPOSAL4,811-4,362
Austin ChalkAUSTIN CHALK - H2S11,428-10,979
Eagle FordEAGLE FORD - H2S11,620-11,171

BHedtke-Henke Unit #5H 42-255-37675

Marathon Oil EF LLC · Karnes · 454 ft elevation · 26,000 ft TD

FormationMD ftSubsea
Queen City3,620-3,166
Reklaw4,213-3,759
Carrizo4,716-4,262
WilcoxWILCOX - DISPOSAL4,799-4,345
Austin ChalkAUSTIN CHALK - H2S11,426-10,972
Eagle FordEAGLE FORD - H2S11,623-11,169

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.