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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 →

AKeys Unit #106H3 tops×BKeys Unit #11H4 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA290 FT ELB291 FT ELCarrizoCarrizoWilcoxWilcoxAustin 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.

FormationAKeys UnitBKeys Unit
Carrizo-3,638MD 3,928-3,637MD 3,928
Wilcox-4,518MD 4,808-4,517MD 4,808
Austin Chalk-9,945MD 10,235-9,959MD 10,250
Eagle Ford—-10,242MD 10,533

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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

AKeys Unit #106H 42-255-36589

Magnolia Oil & Gas Operating LLC · Karnes · 290 ft elevation · 12,500 ft TD

FormationMD ftSubsea
Carrizo3,928-3,638
WilcoxWILCOX - DISPOSAL4,808-4,518
Austin ChalkAUSTIN CHALK - H2S10,235-9,945

BKeys Unit #11H 42-255-36686

Magnolia Oil & Gas Operating LLC · Karnes · 291 ft elevation · 12,500 ft TD

FormationMD ftSubsea
Carrizo3,928-3,637
WilcoxWILCOX - DISPOSAL4,808-4,517
Austin ChalkAUSTIN CHALK - H2S10,250-9,959
Eagle FordEAGLE FORD - H2S10,533-10,242

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.