RILEY #1-28H

API 3505123724 · Grady County, Oklahoma

ACOIL

API

3505123724

Operator

CONTINENTAL RESOURCES INC

County

Grady

Location

Sec 28 07N 06W (IM)

Completion

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

Completion 0

HORIZONTAL HOLEACOIL

Spudded

2013-09-25

Drilling finished

2013-11-09

Completed

2013-12-16

First production

2013-12-20

Total depth

18,033 ft

Operator

CONTINENTAL RESOURCES INC

Interval

Formation	Produced	Perforated (ft)	Treatment
WOODFORD	OIL	14,097–17,925	Frac

Production test

Tested	Oil (bbl/d)	Gas (MCF/d)	Water (bbl/d)	Gravity (°API)	Shut-in (psi)	Choke
2014-01-04	246	3,085	1,104	56.6	3,800	34/64

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	9 5/8	40	P-110	12,100	1,210
PRODUCTION	5 1/2	23	P-110	18,033	1,345
CONDUCTOR	20	—	—	79	9
SURFACE	13 3/8	54.5	J-55	1,525	850

Drilling permit

Oklahoma files 1 application to drill this well, naming 4 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 2013-09-24

WRADRHorizontal hole

Permit API

35051237240000

Operator

CONTINENTAL RESOURCES INC

Well type

OIL

Approved

2013-09-24

Expires

2014-03-24

Proposed depth

18,795 ft

Proposed measured depth

18,033 ft

Proposed true vertical depth

13,600 ft

Proposed lateral

3,936 ft

Surface casing

1,500 ft

Ground elevation

1,138 ft

Target formations

Formation	Expected top (ft)
CANEY	13,390
MISSISSIPPI LM	13,546
WOODFORD	13,705
HUNTON	13,867

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

35.045092, -97.843025

35.04509, -97.84302 · Surface location as filed with Oklahoma⌘ or Ctrl + scroll to zoom

Every well in Grady County, Oklahoma

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