TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, 0.4 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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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA447 FT ELB457 FT ELQueen CityQueen CityCarrizoCarrizoOlmosOlmosReklawReklawWilcoxWilcoxAustin 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.

FormationAGriffin-Krueger SA4BWsru Allocation #1
Escondido—-2,140MD 2,597
Reklaw-2,228MD 2,675-1,382MD 1,839
Queen City-2,232MD 2,679-341MD 798
Bartosh—-2,610MD 3,067
Navarro—-3,078MD 3,535
Carrizo-3,527MD 3,974-1,099MD 1,556
Wilcox-3,688MD 4,135-4,115MD 4,572
Edwards—-6,562MD 7,019
Buda—-6,843MD 7,300
Olmos-8,369MD 8,816-1,288MD 1,745
Anacacho—-9,671MD 10,128
Austin Chalk-9,847MD 10,294-9,697MD 10,154

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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

Marathon Oil EF LLC · Atascosa · 447 ft elevation · 17,500 ft TD

FormationMD ftSubsea
Reklaw2,675-2,228
Queen City2,679-2,232
Carrizo3,974-3,527
WilcoxWILCOX - DISPOSAL4,135-3,688
OlmosOLMOS - DISPOSAL8,816-8,369
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,294-9,847

XTO Energy Inc. · Atascosa · 457 ft elevation · 12,000 ft TD

FormationMD ftSubsea
Queen City798-341
Carrizo1,556-1,099
OlmosOLMOS - DISPOSAL1,745-1,288
Reklaw1,839-1,382
EscondidoESCONDIDO - H2S, DISPOSAL2,597-2,140
Bartosh3,067-2,610
NavarroNAVARRO - H2S3,535-3,078
WilcoxWILCOX - DISPOSAL4,572-4,115
EdwardsEDWARDS - H2S, DISPOSAL7,019-6,562
BudaBUDA - H2S7,300-6,843
AnacachoANACACHO - H2S10,128-9,671
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,154-9,697

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.