Key Takeaways PTEN will lease two APEX 1500 drilling rigs to Archer under a multi-year agreement for Argentina.PTEN's rigs will support Archer's YPF contract, with Archer covering prep, upgrades and mobilization costs.PTEN expects the high-spec rigs to begin operating in the Vaca Muerta formation by mid-2026.Patterson-UTI Energy, Inc. (PTEN) , a leading provider of onshore drilling and pressure pumping services, has secured a significant agreement to lease two state-of-the-art APEX 1500 drilling rigs to DLS ...