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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 →

AHalsell Ranch #S 13 tops×BGauldin NE #15 tops×
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0-1,000-2,000-3,000SUBSEA FTA1,288 FT ELB1,103 FT ELMarble FallsMarble Falls

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.

FormationAHalsell RanchBGauldin NE
Palo Pinto—575MD 528
Strawn—465MD 638
Atoka—-2,811MD 3,914
Forrestburg Lime-3,382MD 4,670—
Marble Falls-3,246MD 4,534-3,461MD 4,564
Mississippian-3,502MD 4,790—
Barnett—-3,810MD 4,913

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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

AHalsell Ranch #S 1 42-237-39341

Petrobal Omega 1, LLC · Jack · 1,288 ft elevation · 7,000 ft TD

FormationMD ftSubsea
Marble Falls4,534-3,246
Forrestburg Lime4,670-3,382
Mississippian4,790-3,502

BGauldin NE #1 42-363-36298

White Knight Production LLC · Palo Pinto · 1,103 ft elevation · 7,000 ft TD

FormationMD ftSubsea
Palo PintoPALO PINTO - DISPOSAL528575
StrawnSTRAWN - DISPOSAL638465
AtokaATOKA - DISPOSAL3,914-2,811
Marble Falls4,564-3,461
BarnettBARNETT SHALE4,913-3,810

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.