* Oil prices rebound on confirmation of trade talks
* Energy, financial stocks lead gains
* Aussie shares of CYBG Plc top decliner on benchmark (Updates to close)
Sept 5 (Reuters) - Australian shares ended a three-day losing streak to close at a one-month high on Thursday, as confirmation of U.S.-China trade talks cheered investors, while soaring crude oil prices powered energy stocks.
The S&P/ASX 200 index .AXJO closed up 0.9% at 6,613.2 points. The benchmark fell 0.3% on Wednesday.
Oil prices, which had risen more than 4% overnight and dipped slightly in early Asian trade, rebounded after China and the United States agreed to hold high-level trade talks in early October in Washington. O/R
China's commerce ministry also said its trade team will consult with their U.S. counterparts in mid-September in preparation for the meeting. gains on the benchmark index, energy stocks .AXEJ jumped 1.4%, with its biggest player Woodside Petroleum WPL.AX marking its best day in over 2 months, while engineering services provider WorleyParsons WOR.AX added 4.1%.
Financial stocks .AXFJ also provided a boost to the local benchmark, rising 1% to a more than three-week high. The country's "Big Four" banks gained between 0.7% and 1.1%.
But Australian-listed shares of British lender CYBG Plc CYB.AX slumped 20.3%, making it the top decliner on the benchmark index, after the company said it expected to increase provisions for legacy payment protection insurance costs. mining sector .AXMM closed marginally higher as gains were capped by a 0.7% fall in shares of BHP Group BHP.AX , the mining sub-index's largest constituent and the country's biggest firm by market value, as it traded ex-dividend.
Amid an overall improvement is risk appetite, gold miners .AXGD lost their sheen due to the reduced safe-haven demand for the precious metal.
Top gold miners Newcrest Mining NCM.AX and St Barbara SBM.AX shed 0.7% and 2.2%, respectively.
Across the Tasman Sea, New Zealand's benchmark S&P/NZX 50 index .NZ50 advanced 0.9% to finish at 11,106.67.
Electricity retailer Meridian Energy MEL.NZ and Vital Healthcare Property Trust VHP.NZ were the top performers on the benchmark, strengthening 3% each.