Reliance Industries (RIL) on Tuesday said it will continue to scale down capital expenditure (capex) for its struggling shale gas business in the US. RIL’s shale gas business in the US includes three upstream joint ventures with Chevron, Pioneer Natural Resource and Carrizo Oil and Gas. It had sold its midstream JV with Pioneer last June. So far, RIL has invested a whopping $8.1 bn into these three entities. “We have been scaling down our capex for the shale gas business. Going by the way the energy prices are behaving, there is no way we will be increasing our investment in this business. While last year we had invested over $1.2 billion, we have brought that down to $500 million this year,” an official said.