Years later, Walter C. Teagle of Standard Oil of New Jersey remarked that the agreement was a damn bad move. However, it served to define the sphere of operations of TPC's successor, the Iraq Petroleum Company (IPC). The writer Stephen Hemsley Longrigg, a former IPC employee, noted that the Red Line Agreement, variously assessed as a sad case of wrongful cartelization or as an enlightened example of international co‑operation and fair-sharing, was to hold the field for twenty years and in large measure determined the pattern and tempo of oil development over a large part of the Middle East. Apart from Saudi Arabia and Bahrain where ARAMCO and BAPCO prevailed, IPC monopolized oil exploration inside the Red Line during this period.