Spanish stocks - Factors to watch on Monday

MADRID, Sept 21 (Reuters) - The following Spanish stocks may be affected by newspaper reports and other factors on Monday. Reuters has not verified the newspaper reports, and cannot vouch for their accuracy:

ENERGY

Citigroup cuts Iberdrola (IBE.MC) to "hold" from "buy".

Citigroup cuts Gas Natural (GAS.MC) to "sell" from "hold".

Citigroup cuts Endesa (ELE.MC) to "hold" from "buy".

Citigroup cuts Acciona (ANA.MC) to "hold" from "buy".

Bank of America-Merrill Lynch lifts Repsol (REP.MC) to "neutral" from "underperform" as operating momentum improves.