[The Conversation Africa] Oil is an essential commodity for Kenya's transport and industrial production, electricity generation and water provision. In 2008, as the world grappled with high oil prices, Kenya introduced price controls to cushion the blow for its citizens. The controls worked for over 10 years. But, since the start of April, there have been intermittent fuel shortages in the country. Job Omagwa has studied oil marketing and price controls in Kenya. We asked him to unpack the current fuel shortage.