Bintulu is a coastal town, and the capital of Bintulu District (7,220.4 square kilometers) in the Bintulu Division of Sarawak, Borneo. It is about 650 kilometers from Kuching and about 215 kilometers from either Sibu or Miri.
In the 1920s, these were the years when the Miri field began to decline. Exploration was carried out further and further afield. In 1926 an exploratory team had gone as far as Padang Barawa between the Sungai Seria and Sungai Barawa. Not much attention was paid to their findings then, but now with the Miri field declining the old maps and charts were taken out and studied again.