ಏಷ್ಯಾದ ಅತ್ಯಂತ ಹಳೆಯ ತೈಲ ಕ್ಷೇತ್ರವು ಇಲ್ಲಿ ನೆಲೆಗೊಂಡಿದೆ -

Digboi in Assam is the oldest oil field in Asia. Oil was struck there in 1889, and Asia's first refinery was set up at Digboi in 1901; it is still working.