MADDOX, J. W. -D-

Oil // district 13 // lease#4235

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

229k BBL

cum_gas

0 MCF

wells

30

production

1993-01 — 2026-03

peak_month

1995-07

-- production_history

cum_oil: 229,111 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,470 BBL/mo

Di (annual)

8.7%

b-factor

0.0

EUR

200,575 BBL

R-squared

0.903

type

exponential

-- wells (30)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
32PEBA OIL & GAS, INC.11,2502012-12-07
31PEBA OIL & GAS CO.19992004-06-23
30PEBA OIL & GAS CO.19992004-05-14
29PEBA OIL & GAS CO.11,9992002-10-03
28PEBA OIL & GAS CO.19992001-02-05
26PEBA OIL & GAS CO.19992001-01-10
27PEBA OIL & GAS CO.19992001-01-10
25PEBA OIL & GAS CO.21,2002000-03-10
23PEBA OIL & GAS CO.11,2001995-06-02
21UNION OIL COMPANY OF CALIFORNIA19861992-10-29
17UNION OIL COMPANY OF CALIFORNIA19681992-10-21
18UNION OIL COMPANY OF CALIFORNIA19741992-10-21
19UNION OIL COMPANY OF CALIFORNIA19591992-10-21
20UNION OIL COMPANY OF CALIFORNIA19741992-10-21
22UNION OIL COMPANY OF CALIFORNIA19861992-10-21
16UNION OIL COMPANY OF CALIFORNIA11,2001989-09-26
142-337-80896--------
1042-337-80905--------
1142-337-80906--------
1242-337-80907--------
1342-337-80908--------
1442-337-03492--------
242-337-80897--------
342-337-80898--------
442-337-80899--------
542-337-80900--------
642-337-80901--------
742-337-05031--------
842-337-80903--------
942-337-80904--------
EOF // data source: Texas Railroad Commission // 2026