ProPetro director resigns after Pioneer (Exxon subsidiary) exits entire stake

Filed June 1, 2026 · Period ending May 28, 2026 · ~1 min read

Key Changes

• high

  Pioneer Natural Resources (Exxon subsidiary) sold all remaining ProPetro shares on May 20, 2026, ending its equity position and board representation rights under a prior investor agreement.

  Item 5.02 verify on EDGAR →
• medium

  Board director Alex V. Volkov resigned May 28, 2026 following Pioneer's exit; resignation was not due to any disagreement with management or board on company operations or policies.

  Item 5.02 verify on EDGAR →
• low

  Board size reduced from eight to seven directors after Volkov's departure; no replacement director named.

  Item 5.02 verify on EDGAR →