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2 wells, subsea datum

West to east, 1.9 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 FTA475 FT ELB453 FT ELMidwayMidwayEscondidoEscondidoOlmosOlmosNavarroNavarroAnacachoAnacachoAustin 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.

FormationAWashburn Ranch 02 EBWashburn Ranch 02 B
Midway-5,448MD 5,923-5,474MD 5,927
Escondido-6,823MD 7,298-6,853MD 7,306
Olmos-7,961MD 8,436-7,997MD 8,450
Navarro-9,351MD 9,826-9,390MD 9,843
Anacacho-9,664MD 10,139-9,768MD 10,221
Austin Chalk-10,304MD 10,779-10,290MD 10,743

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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

Silverbow Resources Oper, LLC · La Salle · 475 ft elevation · 14,000 ft TD

FormationMD ftSubsea
Midway5,923-5,448
Escondido7,298-6,823
OlmosOLMOS - DISPOSAL8,436-7,961
Navarro9,826-9,351
Anacacho10,139-9,664
Austin Chalk10,779-10,304

Silverbow Resources Oper, LLC · La Salle · 453 ft elevation · 14,000 ft TD

FormationMD ftSubsea
Midway5,927-5,474
Escondido7,306-6,853
OlmosOLMOS - DISPOSAL8,450-7,997
Navarro9,843-9,390
Anacacho10,221-9,768
Austin Chalk10,743-10,290

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.