ULMER "A"

Oil // district 9 // lease#13063

op: PIONEER NATURAL RES. USA, INC.

cum_oil

86k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2021-03

peak_month

1993-05

-- production_history

cum_oil: 85,737 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

701 BBL/mo

Di (annual)

10.0%

b-factor

0.0

EUR

83,256 BBL

R-squared

0.760

type

exponential

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PARKER & PARSLEY, LTD.19,1001991-02-20
EOF // multi-state drilling data platform // 2026