BRACKEN, J. A. 35

Oil // district 5 // lease#1139

op: UNION OIL COMPANY OF CALIFORNIA

fields: VAN

cum_oil

719k BBL

cum_gas

0 MCF

wells

13

production

1993-01 — 2026-03

peak_month

2015-03

-- production_history

cum_oil: 719,434 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,353 BBL/mo

Di (annual)

7.2%

b-factor

0.0

EUR

382,098 BBL

R-squared

0.528

type

exponential

-- wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1UNION OIL COMPANY OF CALIFORNIA23,0002024-12-19
4UNOCAL EXPLORATION CORPORATION22,9972024-08-21
10UNOCAL EXPLORATION CORPORATION43,0122024-07-26
15UNION OIL COMPANY OF CALIFORNIA34,4002009-01-08
5UNION OIL COMPANY OF CALIFORNIA12,9961997-02-06
6UNION OIL COMPANY OF CALIFORNIA12,9861997-02-06
2UNION OIL COMPANY OF CALIFORNIA13,0021996-05-14
14UNION EXPL. PARTNERS, LTD.13,2501989-12-04
13UNION EXPL. PARTNERS, LTD.13,1501989-05-01
11UNION EXPL. PARTNERS, LTD.13,1001986-12-22
342-467-00630--------
742-467-00623--------
942-467-30024--------
EOF // data source: Texas Railroad Commission // 2026