Oct 21 (Reuters) - BHP Billiton (L:BLT) Ltd BHP.AX :
* Operational review for the quarter ended 30 September 2015 BHP.AX
* Production guidance maintained across all businesses.
* Petroleum capital expenditure of US$2.9 billion now planned for the 2016 financial year, a 6% decline from prior guidance of US$3.1 billion.
* Four major projects under development are tracking to plan.
* Says total iron ore production for the September 2015 quarter increased by seven per cent to 61 mt
* Qtrly copper production 0.4 mt, down 3 percent from last year
* Says US$600 million petroleum exploration program is planned for the 2016 financial year
* Says "at current mining rates, operations at crinum are expected to cease in the first quarter of the 2016"
* Source text for Eikon ID:nASX4cblMg
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