SPACEK, FRANK

Oil // district 2 // lease#3424

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

164k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1993-07

-- production_history

cum_oil: 163,623 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,272 BBL/mo

Di (annual)

12.2%

b-factor

0.0

EUR

124,587 BBL

R-squared

0.458

type

exponential

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9UNION OIL COMPANY OF CALIFORNIA56,5002018-04-19
2UNION OIL COMPANY OF CALIFORNIA46,8152018-03-28
4UNION OIL COMPANY OF CALIFORNIA25,5132018-03-28
7PREMIER NATURAL RESOURCES, LLC26,4092018-02-28
11UNION OIL COMPANY OF CALIFORNIA76,6122008-06-02
10UNION OIL COMPANY OF CALIFORNIA34,8122007-12-19
5PREMIER NATURAL RESOURCES, LLC15,5012007-12-19
6SYNERGY OIL & GAS, INC. (A)26,0512007-10-17
142-239-03941--------
342-239-00552--------
EOF // data source: Texas Railroad Commission // 2026