TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, 1.7 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 →

AAse South #F222ND7 tops×BRazorback D #4H7 tops×
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-0-2,000-4,000-6,000-8,000SUBSEA FTA297 FT ELB261 FT ELWilcoxWilcoxCarrizoCarrizoNavarroNavarroOlmosOlmosAnacachoAnacachoAustin 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.

FormationAAse SouthBRazorback D
Queen City-1,543MD 1,840—
Carrizo-2,803MD 3,100-2,538MD 2,799
Wilcox-4,027MD 4,324-2,537MD 2,798
Escondido—-6,273MD 6,534
Navarro-6,568MD 6,865-6,273MD 6,534
Olmos-7,340MD 7,637-7,348MD 7,609
Anacacho-8,622MD 8,919-8,649MD 8,910
Austin Chalk-8,797MD 9,094-8,900MD 9,161

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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

AAse South #F222ND 42-013-36023

Arrow S Energy Operating, LLC · Atascosa · 297 ft elevation · 9,522 ft TD

FormationMD ftSubsea
Queen City1,840-1,543
Carrizo3,100-2,803
WilcoxWILCOX - DISPOSAL4,324-4,027
NavarroNAVARRO - H2S6,865-6,568
OlmosOLMOS - DISPOSAL7,637-7,340
AnacachoANACACHO - H2S8,919-8,622
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL9,094-8,797

BRazorback D #4H 42-013-36143

EOG Resources, Inc. · Atascosa · 261 ft elevation · 10,800 ft TD

FormationMD ftSubsea
WilcoxWILCOX - DISPOSAL2,798-2,537
Carrizo2,799-2,538
EscondidoESCONDIDO - H2S, DISPOSAL6,534-6,273
NavarroNAVARRO - H2S6,534-6,273
OlmosOLMOS - DISPOSAL7,609-7,348
AnacachoANACACHO - H2S8,910-8,649
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL9,161-8,900

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.