1403 GMT [Dow Jones] The cost to insure debt issued by Apache Corp. via credit default swaps fell 8.5% to 90.8BP after the company announced it will buy certain oil and gas assets from BP Plc for $7 billion. Apache was raised to 'sector perform' from 'underperform' by Scotia Capital analysts after the announcement. Meanwhile CDS on BP fell 4.1%, reflecting analysts' views that BP is getting a fair price for the assets. (katy.burne@dowjones.com) Contact us in New York. Darlene Ross, 212 416-2166; darlene.ross@dowjones.com (END) Dow Jones Newswires July 21, 2010 10:05 ET (14:05 GMT)