TUNNELL, A. R. 59

Oil · District 05 · Lease #3217

Operator: UNION OIL COMPANY OF CALIFORNIA

Cum Oil

125k BBL

Cum Gas

281k MCF

casinghead

Wells

8

Production

1993-01 — 2009-11

Peak Month

1998-05

Production History

Cum Oil: 125,289 BBL Cum Gas: 280,651 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,324 BBL/mo

Di (annual)

32.2%

b-factor

0.0

EUR

86,577 BBL

R-squared

0.576

type

exponential

Operator History (from monthly production reports)

1993-01 — 2013-01 UNION OIL COMPANY OF CALIFORNIA 241 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6BASA RESOURCES, INC.13,0051996-04-24
8BASA RESOURCES, INC.12,9351996-02-15
17BASA RESOURCES, INC.23,0001996-02-13
20UNION OIL COMPANY OF CALIFORNIA12,4401991-02-19
19UNION OIL COMPANY OF CALIFORNIA12,5401991-01-28
13BASA RESOURCES INC.12,9621989-11-10
7BASA RESOURCES INC.12,9591989-02-21
1BASA RESOURCES INC.13,0101988-02-03