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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 →

AApollo Unit #25H4 tops×BApollo Unit #27H3 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA334 FT ELB334 FT ELAnacachoAnacachoAustin 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.

FormationAApollo UnitBApollo Unit
Olmos-8,489MD 8,823—
Anacacho-9,857MD 10,191-9,832MD 10,166
Austin Chalk-10,072MD 10,406-10,168MD 10,502
Eagle Ford-10,380MD 10,714-10,293MD 10,627

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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

AApollo Unit #25H 42-255-37857

Kimmeridge Texas Gas, LLC · Karnes · 334 ft elevation · 10,925 ft TD

FormationMD ftSubsea
Olmos8,823-8,489
Anacacho10,191-9,857
Austin ChalkAUSTIN CHALK - H2S10,406-10,072
Eagle FordEAGLE FORD - H2S10,714-10,380

BApollo Unit #27H 42-255-37859

Kimmeridge Texas Gas, LLC · Karnes · 334 ft elevation · 10,900 ft TD

FormationMD ftSubsea
Anacacho10,166-9,832
Austin ChalkAUSTIN CHALK - H2S10,502-10,168
Eagle FordEAGLE FORD - H2S10,627-10,293

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.