Drillers added 15 oil rigs and two gas rigs in the week to 12 August, bringing the total rig count up to 396, compared with 672 a year ago, energy services firm Baker Hughes said.

That is the longest streak of rig additions since April 2014 when US oil futures averaged over $100 a barrel. Since 1 July, drillers have added 66 oil rigs.

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