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2 wells, subsea datum

West to east, 0.7 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 →

ASteelhead H #8H10 tops×BSteelhead Q #15H10 tops×
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0-2,000-4,000-6,000-8,000SUBSEA FTA355 FT ELB346 FT ELYeguaYeguaSpartaSpartaQueen CityQueen CityWilcoxWilcoxEscondidoEscondidoCarrizoCarrizoOlmosOlmosAnacachoAnacachoAustin 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.

FormationASteelhead HBSteelhead Q
Yegua160MD 195175MD 171
Sparta-492MD 847-477MD 823
Queen City-764MD 1,119-749MD 1,095
Wilcox-2,278MD 2,633-2,263MD 2,609
Carrizo-2,279MD 2,634-2,264MD 2,610
Escondido-2,484MD 2,839-2,263MD 2,609
Olmos-6,857MD 7,212-6,861MD 7,207
Anacacho-8,320MD 8,675-8,284MD 8,630
Austin Chalk-8,977MD 9,332-8,961MD 9,307
Eagle Ford-9,053MD 9,408-9,038MD 9,384

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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

ASteelhead H #8H 42-283-37488

EOG Resources, Inc. · La Salle · 355 ft elevation · 10,500 ft TD

FormationMD ftSubsea
Yegua195160
Sparta847-492
Queen City1,119-764
WilcoxWILCOX - DISPOSAL2,633-2,278
Carrizo2,634-2,279
Escondido2,839-2,484
OlmosOLMOS - DISPOSAL7,212-6,857
Anacacho8,675-8,320
Austin Chalk9,332-8,977
Eagle FordEAGLE FORD - H2S9,408-9,053

BSteelhead Q #15H 42-283-37698

EOG Resources, Inc. · La Salle · 346 ft elevation · 11,500 ft TD

FormationMD ftSubsea
Yegua171175
Sparta823-477
Queen City1,095-749
WilcoxWILCOX - DISPOSAL2,609-2,263
Escondido2,609-2,263
Carrizo2,610-2,264
OlmosOLMOS - DISPOSAL7,207-6,861
Anacacho8,630-8,284
Austin Chalk9,307-8,961
Eagle FordEAGLE FORD - H2S9,384-9,038

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.