SHACKELFORD 31-26B

Oil // district 10 // lease#63502

op: PIONEER NATURAL RES. USA, INC.

cum_oil

168k BBL

cum_gas

0 MCF

wells

1

production

2025-05 — 2026-03

peak_month

2025-06

-- production_history

cum_oil: 167,760 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

34,939 BBL/mo

Di (annual)

274.1%

b-factor

0.3

EUR

219,026 BBL

R-squared

0.998

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
102HPIONEER NATURAL RES. USA, INC.110,6102024-10-17
EOF // data source: Texas Railroad Commission // 2026