SUBSCRIBER NOTE: Platts to discontinue Stybarrow, Asian Heavy Sweet Crude Index

Following industry feedback, Platts will discontinue its assessments for Australia's Stybarrow crude with effect from November 2, 2015, following the shut in and disconnection of the oil field. Platts proposed this discontinuation in a subscriber note published August 13 (http://www.platts.com/subscriber-notes-details/27696786). With the discontinuation of Stybarrow crude, Platts will also discontinue the Asian Heavy Sweet (AHS) Crude Index with effect from November 2, 2015. The AHS composes an arithmetic average of assessments at Asian market close of Australian heavy sweet crude grades Enfield, Stybarrow and Vincent. In the interim period, Stybarrow crude's spot price will be assessed based on its gross product worth using the last known crude assay and yields, and values relative to other similar crudes in the region. For a complete list of all affected assessments and their PGA codes, please see the table below.

CODE ASSESSMENT PGA PAGE AARAH00 Stybarrow FOB Australia S'pore Close MH2218, MH2219, MH2240 AARAH03 Stybarrow FOB Australia S'pore Close MAvg AARAI00 Stybarrow FOB Australia S'pore vs ADB MH2218, MH2240 AARAI03 Stybarrow FOB Australia S'pore vs ADB MAvg AARAG00 Stybarrow FOB Australia London Close MH2219, MH2260 AARAG03 Stybarrow FOB Australia London Close MAvg AAXQC00 Asian Heavy Sweet Index S'pore Close MH2205, MH2206 AAXCQ03 Asian Heavy Sweet Index S'pore Close MAvg AAPDP00 Asian Heavy Sweet Index S'pore vs ADB MH2205, MH2206 AAPDP03 Asian Heavy Sweet Index S'pore vs ADB MAvg AAPDO00 Asian Heavy Sweet Index London Close MH2206, MH2260 AAPDO03 Asian Heavy Sweet Index London Close MAvg

Please send all comments and queries to asia_crude@platts.com and pricegroup@platts.com.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make comments not marked as confidential available upon request.