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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 #22H4 tops×BApollo Unit #26H4 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA335 FT ELB334 FT ELOlmosOlmosAnacachoAnacachoAustin 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-8,490MD 8,825-8,454MD 8,788
Anacacho-9,840MD 10,175-9,818MD 10,152
Austin Chalk-10,140MD 10,475-10,070MD 10,404
Eagle Ford-10,311MD 10,646-10,355MD 10,689

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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 #22H 42-255-37658

Kimmeridge Texas Gas, LLC · Karnes · 335 ft elevation · 11,300 ft TD

FormationMD ftSubsea
Olmos8,825-8,490
Anacacho10,175-9,840
Austin ChalkAUSTIN CHALK - H2S10,475-10,140
Eagle FordEAGLE FORD - H2S10,646-10,311

BApollo Unit #26H 42-255-37858

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

FormationMD ftSubsea
Olmos8,788-8,454
Anacacho10,152-9,818
Austin ChalkAUSTIN CHALK - H2S10,404-10,070
Eagle FordEAGLE FORD - H2S10,689-10,355

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.