Below is a three month price history chart comparing the stock performance of REXX, versus BRY and UNT.

FORBES: Bearish Two Hundred Day Moving Average Cross - REXX

Other competitors in the energy sector include: EV Energy Partners, L.P. (EVEP), New Concept Energy (GBR), and Rex Energy Corporation (REXX).

FORBES: Earnings Preview: Range Resources

Among the largest underlying components of XOP, in trading today Rex Energy Corp ( NASD: REXX) is up about 1.4%, Halcon Resources Corp ( NYSE: HK) is up about 1.3%, and Energen Corp. ( NYSE: EGN) is up by about 0.4%.

FORBES: XOP, REXX, HK, EGN: ETF Inflow Alert

Among the largest underlying components of XOP, in trading today Rex Energy Corp ( NASD: REXX) is up about 0.2%, Comstock Resources, Inc. ( NYSE: CRK) is down about 0.9%, and Laredo Petroleum Holdings Inc ( NYSE: LPI) is lower by about 0.3%.

FORBES: SPDR S&P Oil & Gas Exploration & Production ETF Experiences Big Inflow