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2 wells, subsea datum

West to east, 0.2 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 →

ANatho Unit A #23 tops×BColleen Unit B #47 tops×
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-0-2,000-4,000-6,000-8,000-10,000-12,000SUBSEA FTA283 FT ELB297 FT ELAustin 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.

FormationANatho Unit ABColleen Unit B
Queen City—-98MD 395
Yegua—-2,335MD 2,632
Reklaw—-4,462MD 4,759
Carrizo—-4,636MD 4,933
Wilcox—-4,977MD 5,274
Pecan Gap-11,629MD 11,912—
Austin Chalk-11,792MD 12,075-11,772MD 12,069
Eagle Ford-12,017MD 12,300-12,021MD 12,318

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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

ANatho Unit A #2 42-255-33403

Burlington Resources O & G Co LP · Karnes · 283 ft elevation · 21,000 ft TD

FormationMD ftSubsea
Pecan Gap11,912-11,629
Austin Chalk12,075-11,792
Eagle Ford12,300-12,017

BColleen Unit B #4 42-255-37782

Burlington Resources O & G Co LP · Karnes · 297 ft elevation · 17,500 ft TD

FormationMD ftSubsea
Queen City395-98
YeguaYEGUA - DISPOSAL2,632-2,335
Reklaw4,759-4,462
Carrizo4,933-4,636
WilcoxWILCOX - DISPOSAL5,274-4,977
Austin ChalkAUSTIN CHALK - H2S12,069-11,772
Eagle FordEAGLE FORD - H2S12,318-12,021

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.