Patterson-UTI Energy, Inc. (PTEN) disclosed a significant development involving its subsidiary, Patterson-UTI International Holdings, Inc. The subsidiary has entered into a non-binding term sheet with ADNOC Drilling, a subsidiary of Abu Dhabi National Oil Company (“ADNOC”). Subject to definitive agreements and regulatory approvals, Patterson-UTI expects to acquire a minority equity interest in Turnwell Industries LLC OPC, a company newly established by ADNOC Drilling. Additionally, Abu Dhabi-based oil and g ...