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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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500-0-500-1,000-1,500-2,000-2,500SUBSEA FTA2,635 FT ELB2,647 FT ELQueenQueenGrayburgGrayburgSan AndresSan AndresClear ForkClear ForkSpraberrySpraberry

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.

FormationAHolt 112-110 (Alloc-B)BHolt 112-110 (Alloc-B)
Queen795MD 1,840807MD 1,840
Grayburg580MD 2,055592MD 2,055
San Andres475MD 2,160487MD 2,160
Clear Fork-1,840MD 4,475-1,828MD 4,475
Spraberry-2,830MD 5,465-2,818MD 5,465

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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

Laredo Petroleum, Inc. · Reagan · 2,635 ft elevation · 9,000 ft TD

FormationMD ftSubsea
Queen1,840795
Grayburg2,055580
San AndresSAN ANDRES - SALTWATER FLOW, POS2,160475
Clear ForkCLEARFORK4,475-1,840
Spraberry5,465-2,830

Laredo Petroleum, Inc. · Reagan · 2,647 ft elevation · 9,000 ft TD

FormationMD ftSubsea
Queen1,840807
Grayburg2,055592
San AndresSAN ANDRES - SALTWATER FLOW, POS2,160487
Clear ForkCLEARFORK4,475-1,828
Spraberry5,465-2,818

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.