They earlier made the term of the venture indefinite. The new supply agreements cover 2017-26.
Yugragazpererabotka owns and operates gas processing plants at Nizhnevartovskiy, Belozerniy, and Nyagan, compressor stations, and pipelines from the compressor stations to the plants.
Last year, the company processed more than 12.5 billion cu m of associated gas, 9% more than in 2011 and 71% more than the year the joint venture was established.
Completion of a compressor station at Nizhnevartovskiy last year boosted plant capacity to 6.2 billion cu m/year.