The explorer said it had suspended its intended sale of stake in the project.
Tullow said it had been granted another 15 months for exploration phase of the Turkana oil project.
The move now pushes further away the timelines for the project that had originally been set for 2021 before several extensions.
Kenyans will have to wait until after 2025 for petrodollars from Turkana oil fields to start trickling in after the government extended the exploration timeline for Tullow.
The British oil explorer Wednesday said it had been granted another 15 months for exploration phase of the Turkana oil project, essentially pushing ahead production timelines and extending the long-awaited final investment decision.