TOOLS · CROSS-SECTION · TEXAS

2 wells, subsea datum

West to east, under 0.1 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 →

ASouth Lake #3H5 tops×BSouth Lake #5H5 tops×
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-0-2,000-4,000-6,000-8,000SUBSEA FTA252 FT ELB252 FT ELNavarroNavarroEscondidoEscondidoOlmosOlmosAnacachoAnacachoAustin 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.

FormationASouth LakeBSouth Lake
Navarro-6,857MD 7,109-6,855MD 7,107
Escondido-6,857MD 7,109-6,855MD 7,107
Olmos-7,652MD 7,904-7,649MD 7,901
Anacacho-8,901MD 9,153-8,903MD 9,155
Austin Chalk-9,202MD 9,454-9,207MD 9,459

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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

ASouth Lake #3H 42-013-36252

EOG Resources, Inc. · Atascosa · 252 ft elevation · 10,500 ft TD

FormationMD ftSubsea
NavarroNAVARRO - H2S7,109-6,857
EscondidoESCONDIDO - H2S, DISPOSAL7,109-6,857
OlmosOLMOS - DISPOSAL7,904-7,652
AnacachoANACACHO - H2S9,153-8,901
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL9,454-9,202

BSouth Lake #5H 42-013-36254

EOG Resources, Inc. · Atascosa · 252 ft elevation · 10,500 ft TD

FormationMD ftSubsea
NavarroNAVARRO - H2S7,107-6,855
EscondidoESCONDIDO - H2S, DISPOSAL7,107-6,855
OlmosOLMOS - DISPOSAL7,901-7,649
AnacachoANACACHO - H2S9,155-8,903
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL9,459-9,207

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.