WYOMING · WELLS · BIG HORN COUNTY · API 49-003-20960

Manderson Unit 21-29L

ActiveVertical oil wellWOGCC status: Producing Gas Well

County
Big Horn

A vertical oil well in Big Horn County, Wyoming, operated by Natural Gas Processing Company. WOGCC status: producing gas well.

Spudded December 17, 1996.

Completed in one field: Manderson.

It has reported 5,531 bbl of oil, 1,044,888 Mcf of gas, and 0 bbl of water since February 1997; in the twelve months through August 2026, 105 bbl, 6,513 Mcf, and 0 bbl.

105
bbl oil, 12 months through Aug 2026
6,513
Mcf gas, same 12 months
0
bbl produced water, same 12 months
5,531
bbl oil since Feb 1997 · 1.0M Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
Sep 13, 1996
Proposed formation
Muddy
Target depth
5,950 ft

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Reported production

Every month on file for this well on form 2, summed across its fields and the operators that filed it. The newest months can still be amended.

12 months through Aug 2026 105 · prior 12 89(+18%)

0200400600199820002002200420062008201020122014201620182020202220242026

Manderson Unit 21-29L: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
MandersonMuddyActive—Feb 1, 1997Feb 1997 to Sep 20265,5311,044,8880

Formation tops

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10 tops as filed, by depth. A formation filed more than once is listed each time.

FormationDepth
GREYBULL560 ft
FRONTIER A4,272 ft
FRONTIER-24,440 ft
FRONTIER-34,725 ft
MOWRY4,832 ft
OCTH LOUIE4,964 ft
MUDDY5,396 ft
DAKOTA5,616 ft
FUSON5,732 ft
LAKOTA5,826 ft

Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"

Formation tops nearby

Operators of record

OperatorFromTo
Natural Gas Processing CompanyJan 1, 2016today
Saga Petroleum LLCNov 1, 2006Jan 1, 2016
KCS Mountain Resources IncJan 1, 2000Nov 1, 2006

Well record

API number
49-003-20960
Location
NE NW 29-50N-92W · 695 FNL, 2188 FWL
Elevation
4,016 ft
Total depth
5,950 ft
Land
Federal
Basin, as WOGCC files it
Bighorn Basin
APD
Approved Sep 13, 1996
Proposed formation
Muddy
Target depth
5,950 ft
Spudded
Dec 17, 1996

About this data

Wyoming Oil and Gas Conservation Commission (WOGCC), from its public database extracts. Status and type are in WOGCC's own words. Production and injection are what operators filed on form 2, by well and month; twelve-month figures end in Aug 2026, the last month whose filings are in. Locations are from the well's location plat and are approximate. The Commission's production file names each well's current operator on every month, so an operator's figures are those of the wells it operates today. Nothing is estimated.

Developers: this page as JSON is GET /v1/data/wells/4900320960, documented in the API reference.