YORK, ELLA -102-

Oil // district 5 // lease#3270

op: UNION OIL COMPANY OF CALIFORNIA

cum_oil

110k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

1995-12

-- production_history

cum_oil: 109,991 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,244 BBL/mo

Di (annual)

27.7%

b-factor

0.0

EUR

97,123 BBL

R-squared

0.742

type

exponential

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2UNION OIL COMPANY OF CALIFORNIA23,0002023-12-13
2RUNION OIL COMPANY OF CALIFORNIA23,0002023-12-13
18UNION OIL COMPANY OF CALIFORNIA12,5001998-05-06
12UNION OIL COMPANY OF CALIFORNIA12,9521996-01-30
17UNION OIL COMPANY OF CALIFORNIA12,5301996-01-30
14UNION OIL COMPANY OF CALIFORNIA12,7961995-09-29
3UNION OIL COMPANY OF CALIFORNIA13,0101995-07-21
1UNION EXPL. PARTNERS, LTD.12,7201988-08-04
15UNION OIL COMPANY OF CALIFORNIA23,1001988-07-07
EOF // data source: Texas Railroad Commission // 2026