NEW YORK (CNN/Money) - Merrill Lynch upgraded the energy sector and raised its rating on media company Dow Jones ahead of the opening bell Monday.

Merrill Lynch upgraded the energy sector to "overweight" from "market weight," citing compelling values and fading volatility. Merrill also upgraded OGE Energy (OGE: Research, Estimates) to "neutral" from "sell." Shares of OGE rose 97 cents to $19.65 Friday.

Merrill raised its investment rating on media company Dow Jones (DJ: Research, Estimates) to "buy" from "neutral," saying there is a higher likelihood of positive rather than negative news as the financial markets stabilize. Shares of Dow Jones slipped 48 cents to $43.16 in trading Friday.

Credit Suisse First Boston boosted its price target on cable operator Comcast (CMCSA: Research, Estimates) to $36 a share from $32, saying it expects the company to outperform the sector. Shares of Comcast gained 41 cents to $31.26 Friday.

J.P. Morgan added Everest Re Group (RE: Research, Estimates) to its "Focus List." Shares of insurance company slipped 3 cents to $70.55 Friday.

J.P. Morgan cut drug store chain Duane Reade (DRD: Research, Estimates) to "neutral" from "overweight." Shares of Duane Reade fell 50 cents to $13.80 Friday.

The firm also cut its rating on financial information publisher D&B (DNB: Research, Estimates) to "neutral" from "overweight." Shares of D&B fell 51 cents to $38.05 Friday.