RICHARDSON UNIT

Oil · District 8A · Lease #4610

Operator: CHOLLA PETROLEUM, INC.

Fields: P. H. D.

Cum Oil

1.5M BBL

Cum Gas

261k MCF

casinghead

Wells

26

Production

1993-01 — 2025-03

Peak Month

1993-03

Production History

Cum Oil: 1,509,417 BBL Cum Gas: 260,802 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,571 BBL/mo

Di (annual)

14.6%

b-factor

1.2

EUR

1,814,762 BBL

R-squared

0.857

type

hyperbolic

Operator History (from monthly production reports)

1996-05 — 2026-01 CHOLLA PETROLEUM, INC. 357 mo
1993-01 — 1996-04 BHP PETROLEUM (AMERICAS) INC. 40 mo

Wells (26)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14CHOLLA PETROLEUM, INC.33,9002006-09-19
15CHOLLA PETROLEUM, INC.14,9992005-04-04
16CHOLLA PETROLEUM, INC.14,9992005-04-04
17CHOLLA PETROLEUM, INC.14,9992005-04-04
18CHOLLA PETROLEUM, INC.14,9992005-04-04
19CHOLLA PETROLEUM, INC.14,9992005-03-18
1WCHOLLA PETROLEUM, INC.13,8001988-10-14
2WCHOLLA PETROLEUM, INC.13,8001988-10-14
3WCHOLLA PETROLEUM, INC.13,9001988-10-14
4WCHOLLA PETROLEUM, INC.13,8001988-10-14
5WCHOLLA PETROLEUM, INC.13,4001988-10-14
6WCHOLLA PETROLEUM, INC.13,8001988-10-14
13CHOLLA PETROLEUM, INC.14,0001985-10-28
8CHOLLA PETROLEUM, INC.14,0001985-05-14
9CHOLLA PETROLEUM, INC.14,0001985-04-18
12CHOLLA PETROLEUM, INC.14,0001985-04-11
10CHOLLA PETROLEUM, INC.14,0001985-04-03
11CHOLLA PETROLEUM, INC.14,0001985-04-03
7CHOLLA PETROLEUM, INC.14,3051984-11-30
142-169-01040CHOLLA PETROLEUM, INC.------
1D42-169-01145CHOLLA PETROLEUM INC.------
242-169-01045CHOLLA PETROLEUM INC.------
342-169-01046CHOLLA PETROLEUM, INC.------
442-169-01047CHOLLA PETROLEUM, INC.------
542-169-01048CHOLLA PETROLEUM, INC.------
642-169-01023CHOLLA PETROLEUM, INC.------