SOUTH PHOENIX (GRAYBURG) UNIT

Oil · District 08 · Lease #32071

Operator: WASH, ROBERT C. INC.

Cum Oil

214k BBL

Cum Gas

147 MCF

casinghead

Wells

28

Production

1993-01 — 2014-06

Peak Month

1993-01

Production History

Cum Oil: 214,230 BBL Cum Gas: 147 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,345 BBL/mo

Di (annual)

30.3%

b-factor

0.2

EUR

214,278 BBL

R-squared

0.967

type

hyperbolic

Operator History (from monthly production reports)

2015-07 — 2026-07 CAZADOR OPERATING, LLC 133 mo
2013-11 — 2015-06 ODESSA OIL INVESTMENT COMPANY 20 mo
2008-03 — 2013-10 BREYMAN PRODUCING, LLC 68 mo
2004-01 — 2008-02 RCW OIL COMPANY 50 mo
2003-11 — 2003-12 WASH, ROBERT C. INC. 2 mo
1993-01 — 2003-10 BEACH EXPLORATION, INC. 130 mo

Wells (28)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22DIAMONDBACK E&P LLC412,5002014-01-18
28CAZADOR OPERATING LLC14,0001992-08-05
27CAZADOR OPERATING LLC14,1001991-06-19
23CAZADOR OPERATING LLC14,1001990-03-19
24CAZADOR OPERATING LLC14,1001990-03-19
25CAZADOR OPERATING LLC14,1001990-03-19
21CAZADOR OPERATING LLC14,1501989-03-08
7CAZADOR OPERATING LLC14,3001985-10-11
142-317-30455BELCO PETROLEUM CORPORATION------
1042-317-31377CAZADOR OPERATING LLC------
1142-317-31344CAZADOR OPERATING LLC------
1242-317-31501CAZADOR OPERATING LLC------
1342-317-31112CAZADOR OPERATING LLC------
1442-317-31402CAZADOR OPERATING LLC------
1542-317-31400CAZADOR OPERATING LLC------
1642-317-31484CAZADOR OPERATING LLC------
1742-317-30695CAZADOR OPERATING LLC------
1842-317-31511CAZADOR OPERATING LLC------
1942-317-31538CAZADOR OPERATING LLC------
242-317-31622CAZADOR OPERATING LLC------
2042-317-30709CAZADOR OPERATING LLC------
2642-317-30567R K PETROLEUM CORP.------
342-317-31331CAZADOR OPERATING LLC------
442-317-31376CAZADOR OPERATING LLC------
542-317-31362CAZADOR OPERATING LLC------
642-317-31588CAZADOR OPERATING LLC------
842-317-31304CAZADOR OPERATING LLC------
942-317-31216CAZADOR OPERATING LLC------