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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 →

ASequoia K #10H7 tops×BSequoia E #5H7 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA311 FT ELB311 FT ELReklawReklawWilcoxWilcoxCarrizoCarrizoNavarroNavarroAnacachoAnacachoAustin 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.

FormationASequoia KBSequoia E
Reklaw-2,193MD 2,504-2,283MD 2,594
Wilcox-2,882MD 3,193-2,972MD 3,283
Carrizo-2,946MD 3,257-3,036MD 3,347
Navarro-7,514MD 7,825-7,557MD 7,868
Anacacho-9,107MD 9,418-9,093MD 9,404
Austin Chalk-9,607MD 9,918-9,546MD 9,857
Eagle Ford-10,057MD 10,368-10,032MD 10,343

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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

ASequoia K #10H 42-177-34298

EOG Resources, Inc. · Gonzales · 311 ft elevation · 12,200 ft TD

FormationMD ftSubsea
Reklaw2,504-2,193
WilcoxWILCOX - DISPOSAL3,193-2,882
Carrizo3,257-2,946
Navarro7,825-7,514
Anacacho9,418-9,107
Austin ChalkAUSTIN CHALK - H2S9,918-9,607
Eagle FordEAGLE FORD - H2S10,368-10,057

BSequoia E #5H 42-177-34293

EOG Resources, Inc. · Gonzales · 311 ft elevation · 12,200 ft TD

FormationMD ftSubsea
Reklaw2,594-2,283
WilcoxWILCOX - DISPOSAL3,283-2,972
Carrizo3,347-3,036
Navarro7,868-7,557
Anacacho9,404-9,093
Austin ChalkAUSTIN CHALK - H2S9,857-9,546
Eagle FordEAGLE FORD - H2S10,343-10,032

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.