SHIVERS, J. R. 12

Oil // district 5 // lease#3705

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

37k BBL

cum_gas

0 MCF

wells

2

production

2000-10 — 2026-03

peak_month

2022-04

-- production_history

cum_oil: 37,080 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

636 BBL/mo

Di (annual)

120.9%

b-factor

0.0

EUR

6,304 BBL

R-squared

0.596

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12UNOCAL EXPLORATION CORPORATION32,5602022-02-16
4UNION OIL COMPANY OF CALIFORNIA12,9422005-03-25
EOF // data source: Texas Railroad Commission // 2026