SIERRA RANCH #1-33

API 3501925981 · Carter County, Oklahoma

ACOIL

API

3501925981

Operator

CHARTER OAK PRODUCTION CO LLC

County

Carter

Location

Sec 33 03S 03W (IM)

Completion

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

Completion 0

DIRECTIONAL HOLEACOIL

Spudded

2013-10-06

Drilling finished

2013-10-17

Completed

2014-03-15

First production

2014-01-09

Total depth

7,757 ft

Operator

CHARTER OAK PRODUCTION CO LLC

Intervals

Formation	Produced	Perforated (ft)	Treatment
FUSULINID LOW	OIL	6,374–6,445	Acid, Frac
TUSSY	OIL	6,730–6,790	Acid, Frac
CARPENTER	OIL	6,970–7,106	Acid, Frac
MORRIS	OIL	7,164–7,225	Acid, Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2014-03-15	13	80	18	41	3,000	—

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)
PRODUCTION	5 1/2	20	P-110	7,748	460
CONDUCTOR	16	—	—	40	7
SURFACE	9 5/8	36	J-55	503	275

Drilling permit

Oklahoma files 1 application to drill this well, naming 10 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 2013-09-26

WRADRDirectional hole

Permit API

35019259810000

Operator

CHARTER OAK PRODUCTION CO LLC

Well type

OIL

Approved

2013-09-26

Expires

2014-03-26

Proposed depth

8,950 ft

Proposed measured depth

7,757 ft

Proposed true vertical depth

7,672 ft

Surface casing

500 ft

Ground elevation

927 ft

Target formations

Formation	Expected top (ft)
FUSULINID LOW	6,000
TUSSY	6,500
CARPENTER	6,700
MORRIS	7,000
DORNICK HILLS	7,300
SPRINGER	7,500
CANEY	7,650
SYCAMORE	7,950
HUNTON	8,250
VIOLA	8,500

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

34.256020, -97.524530

34.25602, -97.52453 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Carter County, Oklahoma

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