SWAIN, O. L. 11

Oil // district 5 // lease#2088

op: UNION OIL COMPANY OF CALIFORNIA

fields: VAN

cum_oil

893k BBL

cum_gas

0 MCF

wells

11

production

1993-01 — 2026-03

peak_month

2001-10

-- production_history

cum_oil: 893,074 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,604 BBL/mo

Di (annual)

3.3%

b-factor

0.0

EUR

766,183 BBL

R-squared

0.446

type

exponential

-- wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7UNION OIL COMPANY OF CALIFORNIA12,9222002-08-12
23UNION OIL COMPANY OF CALIFORNIA32,9002001-06-12
4UNION OIL COMPANY OF CALIFORNIA22,9242001-06-12
18UNOCAL EXPLORATION CORPORATION23,0901994-11-15
22UNION OIL COMPANY OF CALIFORNIA23,0001993-11-16
17UNION EXPL. PARTNERS, LTD.22,9401989-07-19
14UNION EXPL. PARTNERS, LTD.43,0501988-06-02
13UNION EXPL. PARTNERS, LTD.12,8001988-02-08
11UNION OIL COMPANY OF CALIFORNIA13,0601985-07-25
10UNION OIL COMPANY OF CALIFORNIA12,9501978-01-16
242-467-00517--------
EOF // data source: Texas Railroad Commission // 2026