DEO Petroleum plc is a United Kingdom-based company. The Company is engaged in identifying and acquiring oil and gas exploration licences. The Company operates in two segments: Oil and gas exploration and Investment activity. On November 30, 2010, it completed the acquisition of 42.08% of the Perth Licence area, from Nexen Petroleum plc, and became operator of the Perth licence. The production licences which were acquired are P588 (Blocks 15/21c (All) and 15/21b (Residual Area)) and P218 (Block 15/21a (Residual Area)), containing Perth Core, Perth North, Perth Beta Terrace, Beta East, plus the Sigma, Dolphin and Gamma discoveries.