PEFFLY #1-31H

API 3500321999 · Alfalfa County, Oklahoma

ACOIL

API

3500321999

Operator

SANDRIDGE EXPLORATION & PRODUCTION LLC

County

Alfalfa

Location

Sec 31 29N 09W (IM)

Completion

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

Completion 0

HORIZONTAL HOLEACOIL

Spudded

2010-12-05

Drilling finished

2010-12-23

Completed

2011-01-12

First production

2011-01-12

Total depth

9,540 ft

Operator

SANDRIDGE EXPLORATION & PRODUCTION LLC

Interval

Formation	Produced	Perforated (ft)	Treatment
MISSISSIPPIAN	OIL	5,053–9,430	Acid, Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2011-01-27	452	2,310	4,861	45	0	64/64

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

String	Size (in)	Weight (lb/ft)	Grade	Set (ft)	Cement (sacks)
INTERMEDIATE	7	26#	P-110	5,353	300
LINER	4 1/2	11.6#	N-80	5,351	530
CONDUCTOR	20	94#	K-55	60	5
SURFACE	9 5/8	36#	J-55	1,040	440

Drilling permit

Oklahoma files 1 application to drill this well, naming 5 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 2010-11-30

WRADRHorizontal hole

Permit API

35003219990000

Operator

SANDRIDGE EXPLORATION & PRODUCTION LLC

Well type

OIL

Approved

2010-11-30

Expires

2011-05-30

Proposed depth

10,088 ft

Proposed measured depth

9,540 ft

Proposed true vertical depth

4,901 ft

Proposed lateral

4,876 ft

Surface casing

1,500 ft

Ground elevation

1,196 ft

Target formations

Formation	Expected top (ft)
TONKAWA	3,910
COTTAGE GROVE	4,235
BIG LIME-OSWEGO	4,580
CHEROKEE	4,695
MISSISSIPPIAN	4,900

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

36.942848, -98.216558

36.94285, -98.21656 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Alfalfa County, Oklahoma

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