Close examination of the near surface seismic character led to the interpretation of what was originally
seen as seismic noise in vintage data, as likely being fluid escape chimneys or gas pipes, along the eastern
edge of the Hekja structural complex, where favourable hydrocarbon trapping conditions are present.
No active seeps were seen there; this may be due to other factors, such as the nature of the fluids that
are escaping or the possibility of self sealing activity by biological agents such as bacterial matting with
associated carbonate hard-ground formation.