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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 →

AMargaret Ann #3H7 tops×BMargaret Ann #8H7 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA311 FT ELB313 FT ELReklawReklawYeguaYeguaCarrizoCarrizoWilcoxWilcoxQueen CityQueen CityAustin 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.

FormationAMargaret AnnBMargaret Ann
Reklaw-3,649MD 3,960-3,647MD 3,960
Yegua-3,689MD 4,000-3,687MD 4,000
Carrizo-3,812MD 4,123-3,810MD 4,123
Wilcox-4,811MD 5,122-4,809MD 5,122
Queen City-6,129MD 6,440-6,087MD 6,400
Austin Chalk-10,128MD 10,439-10,072MD 10,385
Eagle Ford-10,358MD 10,669-10,314MD 10,627

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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

AMargaret Ann #3H 42-255-36354

Magnolia Oil & Gas Operating LLC · Karnes · 311 ft elevation · 12,500 ft TD

FormationMD ftSubsea
Reklaw3,960-3,649
YeguaYEGUA - DISPOSAL4,000-3,689
Carrizo4,123-3,812
WilcoxWILCOX - DISPOSAL5,122-4,811
Queen City6,440-6,129
Austin ChalkAUSTIN CHALK - H2S10,439-10,128
Eagle FordEAGLE FORD - H2S10,669-10,358

BMargaret Ann #8H 42-255-36352

Magnolia Oil & Gas Operating LLC · Karnes · 313 ft elevation · 12,500 ft TD

FormationMD ftSubsea
Reklaw3,960-3,647
YeguaYEGUA - DISPOSAL4,000-3,687
Carrizo4,123-3,810
WilcoxWILCOX - DISPOSAL5,122-4,809
Queen City6,400-6,087
Austin ChalkAUSTIN CHALK - H2S10,385-10,072
Eagle FordEAGLE FORD - H2S10,627-10,314

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.