SWAIN, W F 9

Oil // district 5 // lease#3784

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

16k BBL

cum_gas

0 MCF

wells

1

production

2004-08 — 2026-03

peak_month

2004-09

-- production_history

cum_oil: 16,130 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

141 BBL/mo

Di (annual)

8.5%

b-factor

0.0

EUR

19,617 BBL

R-squared

0.546

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3UNION OIL COMPANY OF CALIFORNIA12,9372004-08-17
EOF // data source: Texas Railroad Commission // 2026