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Matern Trust 4-21C4

API 43013528410000 · Duchesne County, Utah · ALTAMONT field

POW
API
43013528410000
Operator
Crescent Energy Operating, LLC
County
Duchesne
Field
ALTAMONT
Location
NESW Sec 21 3S 4W (U)
Measured depth
11,922 ft
True vertical depth
11,900 ft

Production

18 monthly filings with Utah, Jan 2025 to Jun 2026. Each product is in its own unit and the four are never added.

Cumulative oil
5,864 bbl
Cumulative gas
8,692 MCF
Cumulative water
26,573 bbl
PeriodOil (bbl)Gas (MCF)Water (bbl)Days
Jun 20262716031,41030
May 20262996181,33231
Apr 20262674111,17530
Mar 20262884321,35431
Feb 20262763541,18228
Jan 20263264791,52031
Dec 20253384731,40631
Nov 20253163661,40030
Oct 20253464511,63431
Sep 20253684512,06030
Aug 20253904332,66431
Jul 20253913481,38931
Jun 20253914161,92930
May 20257509932,83129
Apr 2025011010
Mar 20252675141,12128
Feb 20252695811,04728
Jan 20253117581,11931

A dash is a period the well filed with no volume for that product. This corpus holds Utah’s series from 2025; the Division publishes earlier years in a separate set of files.

Work history

Utah files 3 records of work done on this well — each drill, plug, deepening, re-entry, re-perforation and recompletion, with the depths reached. One carries a production test the operator filed afterwards.

DRILL

DIRECTIONALPOW
Spudded
2014-04-24
Completed
2014-09-07
First production
2014-09-09
Measured depth
11,422 ft
True vertical depth
11,405 ft

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2014-09-1515411719543—16

A production test is one measurement the operator made on one day and filed with Utah. It is not a monthly average and it does not describe how the well produced afterwards. The choke size is shown exactly as filed: Utah records it in inches on some reports and in sixty-fourths of an inch on others, and names the unit on neither. A dash is a measurement Utah did not file, or one it filed outside any physically possible range.

RECOMP

POW
Completed
2016-04-29

REPERF

POW
Completed
2018-07-18

Location

40.203668, -110.344123

40.20367, -110.34412 · Surface location as filed with Utah

Every well in Duchesne County, Utah

Utah state record, from UT_wells_Wells.parquet. Corpus built 2026-09-11.