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2 wells, subsea datum

West to east, 0.8 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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-0-1,000-2,000-3,000-4,000-5,000-6,000SUBSEA FTA848 FT ELB870 FT ELEscondidoEscondidoOlmosOlmosEagle 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.

FormationAFaith-Yana AA UnitBFaith-Yana P Unit
Queen City—-30MD 900
Yegua—-230MD 1,100
Catahoula—-630MD 1,500
Wilcox—-930MD 1,800
Jackson—-930MD 1,800
Escondido-1,513MD 2,361-1,568MD 2,438
Olmos-2,662MD 3,510-2,694MD 3,564
Cook Mountain—-3,100MD 3,970
San Miguel-4,234MD 5,082—
Anacacho-4,234MD 5,082—
Austin Chalk-5,479MD 6,327—
Eagle Ford-5,966MD 6,814-6,013MD 6,883

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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

Chesapeake Operating, L.L.C. · Dimmit · 848 ft elevation · 9,000 ft TD

FormationMD ftSubsea
EscondidoESCONDIDO - DISPOSAL2,361-1,513
OlmosOLMOS - DISPOSAL3,510-2,662
San MiguelSAN MIGUEL - H2S5,082-4,234
Anacacho5,082-4,234
Austin ChalkAUSTIN CHALK - H2S6,327-5,479
Eagle FordEAGLE FORD - H2S6,814-5,966

Chesapeake Operating, L.L.C. · Webb · 870 ft elevation · 9,000 ft TD

FormationMD ftSubsea
Queen CityQUEEN CITY - INJECTION/DISPOSAL;900-30
YeguaYEGUA - INJECTION/DISPOSAL1,100-230
CatahoulaCATAHOULA-FRIO - INJECTION/DISPO1,500-630
WilcoxWILCOX - INJECTION/DISPOSAL1,800-930
JacksonJACKSON - INJECTION/DISPOSAL1,800-930
EscondidoESCONDITO - INJECTION/DISPOSAL;2,438-1,568
OlmosOLMOS - INJECTION/DISPOSAL3,564-2,694
Cook Mountain3,970-3,100
Eagle FordEAGLE FORD SHALE6,883-6,013

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.