Oct 19 (Reuters) - Bhp Billiton (LON:BLT) Ltd BHP.AX
* qtrly iron ore production 58 mt versus 61 mt a year ago
* qtrly copper production 355 kt versus 377 kt a year ago
* qtrly petroleum production 55 mmboe versus 65 mmboe a year ago
* All production and unit cost guidance remains unchanged for 2017 financial year
* Guidance for olympic dam is under review
* All four major projects under development are tracking to plan
* fundamentals suggest both oil and gas markets will improve over next 12 to 18 months.
* petroleum capital expenditure of approximately us$1.4 billion is planned in 2017 financial year
* Olympic dam copper production for september 2016 quarter decreased by 26 per cent to 41 kt
* mining and processing operations at samarco remain suspended
* Olympic dam operations are in process of recommencing and expected to be fully ramped-up in december 2016 quarter
* continue to expect supply for iron ore and metallurgical coal prices to grow more quickly than demand in near term Source text for Eikon: ID:nASXbGK7wc Further company coverage: BHP.AX