CLAY, H. R.

Oil · District 08 · Lease #2741

Operator: SCYTHIAN, LTD.

Cum Oil

879k BBL

Cum Gas

69k MCF

casinghead

Wells

25

Production

1993-01 — 2011-11

Peak Month

1994-05

Production History

Cum Oil: 879,116 BBL Cum Gas: 68,802 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,403 BBL/mo

Di (annual)

8.8%

b-factor

0.2

EUR

1,001,444 BBL

R-squared

0.671

type

hyperbolic

Operator History (from monthly production reports)

2006-05 — 2012-08 ENDEAVOR ENERGY RESOURCES L.P. 76 mo
2003-08 — 2006-04 SCYTHIAN, LTD. 33 mo
2000-04 — 2003-07 EXXON MOBIL CORPORATION 40 mo
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (25)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
32GRAYROCK ENERGY II, LLC33,6001989-06-02
42GRAYROCK ENERGY II, LLC33,6001989-06-02
35GRAYROCK ENERGY II, LLC23,6001988-08-15
38GRAYROCK ENERGY II, LLC23,6001988-08-15
39GRAYROCK ENERGY II, LLC23,6001988-08-15
44GRAYROCK ENERGY II, LLC23,6001988-08-15
45GRAYROCK ENERGY II, LLC13,6001988-08-11
48GRAYROCK ENERGY II, LLC13,6001988-08-11
49GRAYROCK ENERGY II, LLC13,6001988-08-11
50GRAYROCK ENERGY II, LLC13,6001988-08-11
51GRAYROCK ENERGY II, LLC13,6001988-08-11
52GRAYROCK ENERGY II, LLC13,6001988-08-11
53GRAYROCK ENERGY II, LLC13,6001988-08-11
54GRAYROCK ENERGY II, LLC13,6001988-08-11
55GRAYROCK ENERGY II, LLC13,6001988-08-11
56GRAYROCK ENERGY II, LLC13,6001988-08-11
31GRAYROCK ENERGY II, LLC23,6001988-07-20
26GRAYROCK ENERGY II, LLC13,6001988-07-19
33GRAYROCK ENERGY II, LLC23,6001988-07-19
29GRAYROCK ENERGY II, LLC13,1001979-10-11
1442-227-01675ENDEAVOR ENERGY RESOURCES L.P.------
1742-227-01678ENDEAVOR ENERGY RESOURCES L.P.------
1942-227-01680ENDEAVOR ENERGY RESOURCES L.P.------
2542-227-10140GRAYROCK ENERGY II, LLC------
28W42-227-30319GRAYROCK ENERGY II, LLC------