NEW YORK ( TheStreet) -- Energy XXI (Bermuda) ( EXXI), Halliburton ( HAL), Chevron ( CVX), El Paso Pipeline Partners ( EPB), Complete Production Services ( CPX), Sinopec ( SNP), Schlumberger ( SLB) and InterOil Corporation ( IOC) have up to 100% buy ratings, as per a Bloomberg consensus estimate.Improved consumer spending has eased the concerns of declining demand for oil from the world's largest economy. Crude oil gained over 2% to settle at two-week highs with WTI prices hovering at around $87.3 per barrel at close Monday. Oil prices firmed during the last one week, getting a push from Hurricane Irene. These eight stocks from the energy sector could generate a mean return of 47% over the next one year. They have outperformed the Dow in the last one year gaining 34% compared to the latter's 14% increase. The stocks are arranged in the ascending order of buy ratings.