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2 wells, subsea datum

West to east, 3.1 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 →

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-0-2,000-4,000-6,000-8,000-10,000-12,000SUBSEA FTA436 FT ELB379 FT ELWilcoxWilcoxNavarroNavarroPecan GapPecan GapAustin ChalkAustin Chalk

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.

FormationANW Oldenburg Amarado UnitBByrde
Wilcox-3,783MD 4,219-4,379MD 4,758
Midway—-8,681MD 9,060
Navarro-8,772MD 9,208-9,546MD 9,925
Tyler—-10,030MD 10,409
Pecan Gap-10,213MD 10,649-11,078MD 11,457
Austin Chalk-10,867MD 11,303-11,736MD 12,115

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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

Magnolia Oil & Gas Operating LLC · Fayette · 436 ft elevation · 12,500 ft TD

FormationMD ftSubsea
WilcoxWILCOX - DISPOSAL4,219-3,783
Navarro9,208-8,772
Pecan Gap10,649-10,213
Austin Chalk11,303-10,867

BByrde #H 02OB 42-149-33564

Magnolia Oil & Gas Operating LLC · Fayette · 379 ft elevation · 13,500 ft TD

FormationMD ftSubsea
Wilcox4,758-4,379
Midway9,060-8,681
Navarro9,925-9,546
Tyler10,409-10,030
Pecan Gap11,457-11,078
Austin Chalk12,115-11,736

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.