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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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-0-2,000-4,000-6,000-8,000SUBSEA FTA551 FT ELB550 FT ELEscondidoEscondidoNavarroNavarroOlmosOlmosAnacachoAnacachoAustin 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.

FormationADonut Palace-STX-UnitBDonut Palace-STX-Unit
Wilcox—-881MD 1,431
Midway—-2,668MD 3,218
Escondido-2,944MD 3,495-2,951MD 3,501
Navarro-3,115MD 3,666-3,111MD 3,661
Olmos-3,957MD 4,508-3,961MD 4,511
San Miguel—-4,472MD 5,022
Anacacho-5,080MD 5,631-5,076MD 5,626
Austin Chalk-5,421MD 5,972-5,419MD 5,969
Eagle Ford-5,760MD 6,311-5,747MD 6,297
Buda-5,881MD 6,432—
Georgetown-6,061MD 6,612—
Pearsall-8,660MD 9,211—

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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

Formentera Operations LLC · Frio · 551 ft elevation · 10,900 ft TD

FormationMD ftSubsea
Escondido3,495-2,944
Navarro3,666-3,115
Olmos4,508-3,957
Anacacho5,631-5,080
Austin ChalkAUSTIN CHALK - H2S5,972-5,421
Eagle FordEAGLE FORD - H2S6,311-5,760
BudaBUDA - H2S6,432-5,881
GeorgetownGEORGETOWN - H2S6,612-6,061
Pearsall9,211-8,660

Formentera Operations LLC · Frio · 550 ft elevation · 10,900 ft TD

FormationMD ftSubsea
Wilcox1,431-881
Midway3,218-2,668
Escondido3,501-2,951
Navarro3,661-3,111
Olmos4,511-3,961
San Miguel5,022-4,472
Anacacho5,626-5,076
Austin ChalkAUSTIN CHALK - H2S5,969-5,419
Eagle FordEAGLE FORD - H2S6,297-5,747

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.