Qatar Petroleum and ExxonMobil Corp. (NYSE: XOM) will start drilling for oil and gas off the southern coast of Cyprus in 2018, the Qatari firm said after signing an E&P sharing contract with the Mediterranean island.

Exploring the Mediterranean's Levant Basin has become more attractive since Eni SpA (NYSE: E) discovered Egypt's offshore Zohr Field in 2015, the biggest gas field in the Mediterranean and estimated to contain 850 billion cubic meters of gas.

State-owned Qatar Petroleum and ExxonMobil were among bidders last year for a contract for Cyprus's offshore Block 10.

"A 3-D seismic survey is already underway, as the consortium partners prepare to begin exploration drilling in 2018," Qatar Petroleum said in a statement.

To maintain its dominance over competitors in the U.S. and Australia, Qatar Petroleum is cutting costs at its domestic operations and seeking to expand overseas through joint ventures with international oil firms, the firm said in February.