KIEV, Nov. 9 – Ukrgazvydobuvannia seeks to invest $3 billion to purchase and modernize drilling rigs by 2020, as well as to attract external contractors to carry out the works at the company's fields, Ukrgazvydobuvannia head Oleh Prokhorenko said.

"We assess drilling at $3 billion by 2020. This includes modernization of equipment and works," he said at the 14th Fuel & Energy Complex of Ukraine: the Present and the Future international forum in Kiev.