This year should see Oman’s Khazzan gas field hit full 1bn cfd phase-1 output. But maintaining oil output at around 1mn b/d, never mind increasing it, will be tricky – albeit essential given the country’s cash-strapped finances. Oman hopes freshly-expanded offshore claims will ultimately help replenish its reserves.

Oman finished 2017 with average annual output of 969,000 b/d, just under its 970,000 b/d Opec/non-Opec production agreement and down from 1mn b/d the year...