CUMBIE 32

Oil // district 5 // lease#3232

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

142k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2010-12

peak_month

1995-04

-- production_history

cum_oil: 141,992 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,885 BBL/mo

Di (annual)

32.8%

b-factor

0.1

EUR

117,041 BBL

R-squared

0.807

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7UNION OIL COMPANY OF CALIFORNIA12,4501995-09-29
6UNION OIL COMPANY OF CALIFORNIA12,4601995-03-10
2UNOCAL EXPLORATION CORPORATION12,9501990-11-16
4UNOCAL EXPLORATION CORPORATION12,5001990-10-04
3UNION EXPL. PARTNERS, LTD.12,4101988-02-11
EOF // data source: Texas Railroad Commission // 2026