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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 FTA448 FT ELB446 FT ELOlmosOlmos

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.

FormationAEmma TarttBGriffin-Krueger SA2
Austin Chalk—-566MD 1,012
Queen City—-2,203MD 2,649
Reklaw—-3,220MD 3,666
Carrizo—-3,508MD 3,954
Wilcox—-3,672MD 4,118
Midway-6,460MD 6,908—
Olmos-8,305MD 8,753-8,386MD 8,832
Eagle Ford-9,928MD 10,376—

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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

AEmma Tartt #17H 42-013-34291

XTO Energy Inc. · Atascosa · 448 ft elevation · 18,000 ft TD

FormationMD ftSubsea
Midway6,908-6,460
Olmos8,753-8,305
Eagle Ford10,376-9,928

Marathon Oil EF LLC · Atascosa · 446 ft elevation · 17,500 ft TD

FormationMD ftSubsea
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL1,012-566
Queen City2,649-2,203
Reklaw3,666-3,220
Carrizo3,954-3,508
WilcoxWILCOX - DISPOSAL4,118-3,672
OlmosOLMOS - DISPOSAL8,832-8,386

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.