Premier's American partner, Texaco, has since pulled out of Burma. But despite the British government taking the unprecedented step in April of asking Premier to leave, the oil company has refused.
The Burmese have been accused of using "security" issues in the pipeline area of Tanasserim to drive ethnic Karen people from the land. There are now 120,000 Karen living in refugee camps and human rights groups say at least 30,000 Karen have been killed. The army's tactics include rape and summary executions.
The report says the army was extorting money from local people and using children and forced unpaid labour - described by the special UN rapporteur to Burma as a modern form of slavery - to build military barracks.
"The harsh conditions of those carrying out the labour, including young children and the testimony of local people, belies the government claim that such work is voluntary," said the report.
Mr Jamieson, Premier Oil's chief executive, said he was unaware of any military barracks constructed in the area and that he would have to check the location.
Premier said it was aware of the contents of the report but had not been in charge of the pipeline - just a member of the consortium - when the abuses took place. The company said it reported any abuses it encountered to the "relevant authorities".
Burma's democratic leader and the Nobel peace prizewinner, Aung San Syu Kyi, held under house arrest for the last 10 years, has said Premier "should be ashamed of itself" for continuing to give moral and financial support to the military government.
Wilfred Wong of the Jubilee Campaign, the Westminster-based human rights organisation, said: "It is nonsense for Premier to say it reports abuses to the 'relevant authorities'. The relevant authorities are the Burmese military. Premier should admit they are working with mass murderers."
Since its takeover of the pipeline from Texaco in 1997, Mr Jamieson insists that Premier has ensured that the work was carried out according to the highest "international employment standards".
People who worked on the pipeline told Earth Rights International that the "Englishmen" (a name the Karen use for white foreigners) were aware of what was going on. A 15-year-old girl interviewed by Earth Rights said: "I had to clear bushes and other things. While we were working, there were two English guys watching us. On the first two days the English came and gave us 200 kyt (£1.04) for a day. On the third day the soldiers came back again and said, 'Your work yesterday was not good enough'. We didn't see any English and we didn't get paid."
Texaco pulled out of Burma in 1997 after pressure from the US government and Royal Dutch Shell's chief executive said recently that it would not consider working in Burma "with the current situation."
