Oil, Almeida Theatre
Ambition trumps (if you'll forgive that verb) achievement in Ella Hickson's new play, a long-aborning exercise in time-travel whose audacity of vision can't override one's impression that the final result is an effortful slog. Tracing a mother-daughter relationship across several continents (not to mention 162 years), Oil doesn't so much conjoin the political and the personal as graft various musings on the topic of …