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2 wells, subsea datum

West to east, 1.0 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 →

ATom-Smith Unit A #7H10 tops×BMay Girls #5H6 tops×
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-0-2,000-4,000-6,000-8,000-10,000SUBSEA FTA299 FT ELB342 FT ELQueen CityQueen CityReklawReklawCarrizoCarrizoWilcoxWilcoxAnacachoAnacachoAustin 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.

FormationATom-Smith Unit ABMay Girls
Queen City-2,602MD 2,901-2,383MD 2,725
Reklaw-2,917MD 3,216-3,095MD 3,437
Bartosh-3,199MD 3,498—
Carrizo-3,577MD 3,876-3,753MD 4,095
Wilcox-4,953MD 5,252-3,858MD 4,200
Navarro-8,083MD 8,382—
Olmos-8,653MD 8,952—
Anacacho-10,131MD 10,430-10,312MD 10,654
Eagle Ford-10,482MD 10,781—
Austin Chalk-10,329MD 10,628-10,516MD 10,858

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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

ATom-Smith Unit A #7H 42-013-35709

Marathon Oil EF LLC · Atascosa · 299 ft elevation · 22,000 ft TD

FormationMD ftSubsea
Queen City2,901-2,602
Reklaw3,216-2,917
Bartosh3,498-3,199
Carrizo3,876-3,577
WilcoxWILCOX - DISPOSAL5,252-4,953
NavarroNAVARRO - H2S8,382-8,083
OlmosOLMOS - DISPOSAL8,952-8,653
AnacachoANACACHO - H2S10,430-10,131
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,628-10,329
Eagle FordEAGLE FORD - H2S10,781-10,482

BMay Girls #5H 42-013-36135

Marathon Oil EF LLC · Atascosa · 342 ft elevation · 18,000 ft TD

FormationMD ftSubsea
Queen City2,725-2,383
Reklaw3,437-3,095
Carrizo4,095-3,753
WilcoxWILCOX - DISPOSAL4,200-3,858
AnacachoANACACHO - H2S10,654-10,312
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,858-10,516

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.