Petsec Energy Ltd (ASX: PSA) is an independent oil and gas exploration and production company listed on the Australian Securities Exchange and traded over the counter in the USA in the form of American Depositary Receipts. The Company holds interests in two onshore blocks in the Republic of Yemen, 80 kilometres apart in the Marib Basin – Damis (Block S-1) Production Licence and Al Barqa, Block 7, Exploration Licence.