21.   Another way to kill the bacteria is to add chlorine to the water, which aid agencies are doing in Somalia, where extensive flooding has contaminated wells.

22.   It has close links with Heritage Oil and Gas, which has wells in Angola.

23.   Mobil also had wells along the coast but the state had no dispute with it.

24.   The company also reported that it has more wells than last year and more of them are functioning.

25.   The field currently has three wells operating.

26.   The field has three wells operating.