TOOLS · CROSS-SECTION · TEXAS

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 →

ASTP Unit #1H7 tops×BChevelle Unit #104H8 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA380 FT ELB348 FT ELCarrizoCarrizoReklawReklawYeguaYeguaWilcoxWilcoxQueen CityQueen CityEagle FordEagle FordAustin 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.

FormationASTP UnitBChevelle Unit
Frio—-2,852MD 3,200
Carrizo-3,452MD 3,832-3,102MD 3,450
Reklaw-3,580MD 3,960-3,612MD 3,960
Yegua-3,620MD 4,000-3,652MD 4,000
Wilcox-4,332MD 4,712-4,487MD 4,835
Queen City-6,060MD 6,440-6,092MD 6,440
Austin Chalk-9,826MD 10,206-7,942MD 8,290
Eagle Ford-10,103MD 10,483-7,592MD 7,940

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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

ASTP Unit #1H 42-255-36112

Magnolia Oil & Gas Operating LLC · Karnes · 380 ft elevation · 11,000 ft TD

FormationMD ftSubsea
Carrizo3,832-3,452
Reklaw3,960-3,580
YeguaYEGUA - DISPOSAL4,000-3,620
WilcoxWILCOX - DISPOSAL4,712-4,332
Queen City6,440-6,060
Austin ChalkAUSTIN CHALK - H2S10,206-9,826
Eagle FordEAGLE FORD - H2S10,483-10,103

BChevelle Unit #104H 42-255-36223

Magnolia Oil & Gas Operating LLC · Karnes · 348 ft elevation · 11,000 ft TD

FormationMD ftSubsea
FrioFRIO - DISPOSAL3,200-2,852
Carrizo3,450-3,102
Reklaw3,960-3,612
YeguaYEGUA - DISPOSAL4,000-3,652
WilcoxWILCOX - DISPOSAL4,835-4,487
Queen City6,440-6,092
Eagle FordEAGLE FORD - H2S7,940-7,592
Austin ChalkAUSTIN CHALK - H2S8,290-7,942

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.