ZIEHR, LILLIAN UNIT

Oil // district 3 // lease#14499

op: UNION PACIFIC RESOURCES COMPANY

cum_oil

21k BBL

cum_gas

0 MCF

wells

2

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 21,443 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,064 BBL/mo

Di (annual)

285.7%

b-factor

1.5

EUR

44,663 BBL

R-squared

0.819

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1 AUNION PACIFIC RESOURCES COMPANY213,0001999-08-27
1REUNION PACIFIC RESOURCES COMPANY213,0001999-08-27
EOF // data source: Texas Railroad Commission // 2026