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 FTA446 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 SA3BWsru Allocation #2
Escondido—-2,140MD 2,597
Queen City-2,215MD 2,661-341MD 798
Bartosh—-2,611MD 3,068
Navarro—-3,082MD 3,539
Reklaw-3,223MD 3,669-1,382MD 1,839
Carrizo-3,525MD 3,971-1,099MD 1,556
Wilcox-3,668MD 4,114-4,121MD 4,578
Olmos-8,384MD 8,830-1,288MD 1,745
Anacacho—-9,678MD 10,135
Anacacho - H2S—-9,678MD 10,135
Austin Chalk—-9,703MD 10,160
Austin Chalk-9,860MD 10,306-9,703MD 10,160
Eagle Ford—-10,013MD 10,470

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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 · 446 ft elevation · 17,500 ft TD

FormationMD ftSubsea
Queen City2,661-2,215
Reklaw3,669-3,223
Carrizo3,971-3,525
WilcoxWILCOX - DISPOSAL4,114-3,668
OlmosOLMOS - DISPOSAL8,830-8,384
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,306-9,860

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
Bartosh3,068-2,611
NavarroNAVARRO - H2S3,539-3,082
WilcoxWILCOX - DISPOSAL4,578-4,121
Anacacho10,135-9,678
AnacachoANACACHO - H2S10,135-9,678
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,160-9,703
Austin Chalk10,160-9,703
Eagle FordEAGLEFORD10,470-10,013

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.