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2 wells, subsea datum

West to east, 1.6 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 →

ASpurgeon #13 tops×BL Cranford #1H7 tops×
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-0-1,000-2,000-3,000-4,000-5,000SUBSEA FTA1,091 FT ELB1,099 FT ELMarble FallsMarble FallsBarnettBarnett

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.

FormationASpurgeonBL Cranford
Strawn—-2,317MD 3,416
Marble Falls-4,111MD 5,202-4,155MD 5,254
Upper Barnett—-4,492MD 5,591
Forestburg—-4,559MD 5,658
Lower Barnett Shale—-4,576MD 5,675
Lower Barnett—-4,576MD 5,675
Barnett-4,606MD 5,697-4,492MD 5,591
Ellenburger-4,903MD 5,994—

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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

ASpurgeon #1 42-237-39749

Ernmar Investments, Inc. · Jack · 1,091 ft elevation · 6,200 ft TD

FormationMD ftSubsea
Marble Falls5,202-4,111
BarnettBARNETT SHALE5,697-4,606
Ellenburger5,994-4,903

BL Cranford #1H 42-237-39178

White Knight Production LLC · Jack · 1,099 ft elevation · 6,500 ft TD

FormationMD ftSubsea
Strawn3,416-2,317
Marble Falls5,254-4,155
BarnettUPPER BARNETT SHALE5,591-4,492
BarnettUPPER BARNETT5,591-4,492
Forestburg5,658-4,559
BarnettLOWER BARNETT SHALE5,675-4,576
BarnettLOWER BARNETT5,675-4,576

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.