Sidetrack of Well & Field Production Resumes

Leed Petroleum PLC

("Leed" or the "Company")

Sidetrack of the #1 Well at Main Pass 64

&

Field Production Resumes

Sidetrack of Main Pass 64 #1 well

Leed Petroleum PLC (AIM: LDP), an oil and gas exploration and production company focused on the Gulf of Mexico, today announces that the Company has elected to participate in operations to sidetrack the Main Pass 64 #1 well. The sidetrack was proposed by the operator of the field, Medco Energi (75% WI), and operations commenced on 23 August 2010.

The Main Pass 64 #1 sidetrack well is expected to develop and add proved reserves in the field's primary pay zone.

The Company owns a 25% non-operated working interest and a 19.18% net revenue interest in the well. The well is planned to be drilled to a total measured depth of approximately 8,038 feet and completed for a total cost of approximately US$5,400,000 (US$1,350,000 net to Leed). Log results are expected by the end of third quarter 2010, with production expected to commence early in the fourth quarter.

Field Production Resumes

As previously announced, the third party oil sales line serving the field was shut in on 25 May 2010 whilst the oil transmission company performs pipeline maintenance and repairs. The transmission company estimates that repairs will be completed within 2 to 4 weeks. On 21 August 2010, the operator commenced barging oil to maintain production from the field while the pipeline is repaired. All wells are currently producing.

In January 2007, a waterflood project on the Main Pass field was reactivated. The Main Pass 64/65 waterflood project has yielded positive results, increasing field production from 2006 rates of 290 (56 net) BOPD to an average rate of 890 (170 net) BOPD during the month of May, 2010 prior to field shut-in for pipeline repair.

The Main Pass 64/65 field is located four miles offshore, southeast of New Orleans, Louisiana in approximately 30 feet of water.

Howard Wilson, President and Chief Executive of Leed Petroleum PLC, commented:

"Further development of the Main Pass field will add substantial long life oil reserves to Leed's portfolio. Following the successful completion and sustained high production rate from the Ship Shoal A-6 well, the Main Pass 64 #1 sidetrack will continue to move the Company forward in the diversification of our Gulf of Mexico production base."

Note to Editors

The information contained in this announcement has been reviewed and approved by Dennis Jordan, P.E. (Certified Petroleum Engineer), Engineering Advisor to the Company who has a BS in engineering and is a member in good standing of the Society of Petroleum Evaluation Engineers (SPEE) and the Society of Petroleum Engineers (SPE), with over 37 years experience within the sector.

Leed Petroleum PLC is an AIM quoted independent oil and gas exploration and production company. The Company's operations are concentrated in the Gulf of Mexico region where Leed has established a significant portfolio of producing and development assets. The Company has interests in 17 offshore blocks and 1 onshore field in the region.

Leed's strategy is to grow the Company's portfolio through organic development of its existing assets and to utilize its regional expertise to identify and purchase value adding assets.

Glossary

"BOPD" Barrels Of Oil Per Day