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 →

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-0-1,000-2,000-3,000-4,000-5,000-6,000-7,000SUBSEA FTA512 FT ELB512 FT ELQueen CityQueen CityWilcoxWilcoxEscondidoEscondidoOlmosOlmosSan MiguelSan MiguelAnacachoAnacachoAustin ChalkAustin ChalkEagle FordEagle Ford

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.

FormationALazy a Cotulla HC3BLazy a Cotulla HC1
Queen City-388MD 900-388MD 900
Wilcox-1,288MD 1,800-1,288MD 1,800
Escondido-3,346MD 3,858-3,358MD 3,870
Olmos-4,438MD 4,950-4,459MD 4,971
San Miguel-5,228MD 5,740-5,251MD 5,763
Anacacho-6,128MD 6,640-6,126MD 6,638
Austin Chalk-6,362MD 6,874-6,370MD 6,882
Eagle Ford-6,793MD 7,305-6,801MD 7,313

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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

Chesapeake Operating, L.L.C. · La Salle · 512 ft elevation · 9,000 ft TD

FormationMD ftSubsea
Queen City900-388
WilcoxWILCOX - DISPOSAL1,800-1,288
Escondido3,858-3,346
OlmosOLMOS - DISPOSAL4,950-4,438
San Miguel5,740-5,228
Anacacho6,640-6,128
Austin Chalk6,874-6,362
Eagle FordEAGLE FORD - H2S7,305-6,793

Chesapeake Operating, L.L.C. · La Salle · 512 ft elevation · 9,000 ft TD

FormationMD ftSubsea
Queen City900-388
WilcoxWILCOX - DISPOSAL1,800-1,288
Escondido3,870-3,358
OlmosOLMOS - DISPOSAL4,971-4,459
San Miguel5,763-5,251
Anacacho6,638-6,126
Austin Chalk6,882-6,370
Eagle FordEAGLE FORD - H2S7,313-6,801

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.