WYOMING · WELLS · FREMONT COUNTY · API 49-013-06578

Sheldon Northwest 11C

PluggedVertical oil wellWOGCC status: Permanently Abandoned

Operator of record
Pioneer Oil & Gas
County
Fremont

A vertical oil well in Fremont County, Wyoming, operated by Pioneer Oil & Gas. WOGCC status: permanently abandoned.

Spudded May 3, 1958; plugged July 2, 1978.

Completed in one field: Sheldon Northwest.

It has reported 6,888 bbl of oil, 1,289 Mcf of gas, and 506,158 bbl of water since the record begins in January 1978; its last reported production was December 1983.

0
bbl oil, 12 months through Aug 2026
0
Mcf gas, same 12 months
0
bbl produced water, same 12 months
6,888
bbl oil since Jan 1978 · 1,289 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
May 3, 1958
Proposed formation
Crow MTN
Target depth
4,978 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 0 · prior 12 0

01002001980198519901995200020052010201520202025

Sheldon Northwest 11C: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
Sheldon NorthwestCrow Mountain——Aug 2, 1958by Jan 1978 to Dec 19836,8881,289506,158

Formation tops

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

FormationDepth
SUNDANCE2,600 ft
GYPSUM SPRINGS2,850 ft
NUGGET3,010 ft
CHUGWATER3,130 ft
CROW MOUNTAIN3,395 ft
DINWOODY4,300 ft
PHOSPHORIA4,415 ft
TENSLEEP4,710 ft

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

Formation tops nearby

Well record

API number
49-013-06578
Location
SE SW 36-6N-3W · 0 FNL, 0 FEL
Elevation
6,423 ft
Total depth
4,978 ft
Land
Tribal
Basin, as WOGCC files it
Wind River Basin
APD
Approved May 3, 1958
Proposed formation
Crow MTN
Target depth
4,978 ft
Spudded
May 3, 1958
Plugged
Jul 2, 1978

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/4901306578, documented in the API reference.