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ANNA #1-18

API 3505322829 · Grant County, Oklahoma

ACOIL
API
3505322829
Operator
UNION VALLEY PETROLEUM CORP
County
Grant
Location
Sec 18 28N 05W (IM)

Completion

Oklahoma files 1 completion report for this well. One carries a production test the operator filed.

Completion 1

STRAIGHT HOLEACOIL
Spudded
2011-11-20
Drilling finished
2011-11-28
Completed
2012-03-16
First production
2012-04-03
Total depth
5,396 ft
Operator
UNION VALLEY PETROLEUM CORP

Intervals

FormationProducedPerforated (ft)Treatment
MISSISSIPPI CHATOIL4,796–4,806Acid, Frac
MISSISSIPPI LIMEOIL4,819–5,308Acid, Frac

Production test

TestedOil (bbl/d)Gas (MCF/d)Water (bbl/d)Gravity (°API)Shut-in (psi)Choke
2012-04-0649233653939018/64

A production test is one measurement the operator made on one day and filed with Oklahoma. It is not a monthly average and it does not describe how the well produced afterwards. The choke size is shown exactly as filed: Oklahoma 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 Oklahoma did not file, or one it filed outside any physically possible range.

Casing

StringSize (in)Weight (lb/ft)GradeSet (ft)Cement (sacks)
PRODUCTION5.517J-555,396170
SURFACE8.62524J-55350250

Drilling permits

Oklahoma files 2 applications to drill this well, naming 18 target formations. A permit records what an operator asked to do, not what it did. A target formation is where the operator aimed, and the hole may have missed it, stopped short of it or never been drilled.

Filed 2011-04-28

WRADRStraight hole
Permit API
35053228290000
Operator
UNION VALLEY PETROLEUM CORP
Well type
OIL
Approved
2011-04-28
Expires
2012-04-28
Proposed depth
5,450 ft
Surface casing
380 ft
Ground elevation
1,120 ft

Target formations

FormationExpected top (ft)
OREAD3,280
TONKAWA3,620
LAYTON4,050
CLEVELAND4,240
OSWEGO4,370
CHEROKEE4,520
MISSISSIPPI CHAT4,780
MISSISSIPPI LM4,800
WILCOX5,330

An expected top is the depth the operator predicted before drilling, on the application it filed with Oklahoma. It is not a measurement of where the formation was found.

Filed 2011-04-28

WRAAMStraight hole
Permit API
35053228290001
Operator
UNION VALLEY PETROLEUM CORP
Well type
OIL
Approved
2011-04-28
Expires
2012-04-28
Proposed depth
5,450 ft
Surface casing
380 ft
Ground elevation
1,120 ft

Target formations

FormationExpected top (ft)
OREAD3,280
TONKAWA3,620
LAYTON4,050
CLEVELAND4,240
OSWEGO4,370
CHEROKEE4,520
MISSISSIPPI CHAT4,780
MISSISSIPPI LM4,800
WILCOX5,330

An expected top is the depth the operator predicted before drilling, on the application it filed with Oklahoma. It is not a measurement of where the formation was found.

Location

36.902878, -97.771012

36.90288, -97.77101 · Surface location as filed with Oklahoma

Every well in Grant County, Oklahoma

Oklahoma state record, from OK_wells_rbdms-wells.parquet. Corpus built 2026-09-11.