BRACKEN, J. A. 503

Oil // district 5 // lease#2936

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

493k BBL

cum_gas

0 MCF

wells

13

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 493,460 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

7,191 BBL/mo

Di (annual)

37.8%

b-factor

0.4

EUR

364,942 BBL

R-squared

0.792

type

hyperbolic

-- wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4UNION OIL COMPANY OF CALIFORNIA32,9832021-06-25
5UNION OIL COMPANY OF CALIFORNIA22,9692015-09-10
13UNION OIL COMPANY OF CALIFORNIA23,0572005-03-28
16UNOCAL EXPLORATION CORPORATION32,9002003-04-04
8UNION OIL COMPANY OF CALIFORNIA22,5002003-03-07
12UNION OIL COMPANY OF CALIFORNIA22,4802002-07-18
15UNOCAL EXPLORATION CORPORATION32,9002002-04-08
3UNION OIL COMPANY OF CALIFORNIA12,7002002-03-08
19UNION OIL COMPANY OF CALIFORNIA12,5001996-10-15
18UNION OIL COMPANY OF CALIFORNIA12,4801992-10-26
17UNOCAL EXPLORATION CORPORATION22,9001991-12-13
14UNOCAL EXPLORATION CORPORATION12,9001991-06-21
11UNION EXPL. PARTNERS, LTD.12,4001989-10-10
EOF // data source: Texas Railroad Commission // 2026