The AES Corporation (NYSE:AES): AES receives final approval from the Public Utilities Commission of Ohio for its acquisition of DPL.

The shares closed at $12.32, up $0.29, or 2.41%, on the day. Its market capitalization is $9.46 billion.

Williams Companies, Inc. (NYSE:WMB): Williams Cos. is spinning off WPX Energy, its exploration and production business, on Dec. 31. It will pay 1 share of WPX per 3 shares of WMB.

The shares closed at $27.55, up $0.57, or 2.11%, on the day. Its market capitalization is $16.24 billion.

EnerNOC, Inc. (NASDAQ:ENOC): EnerNOC slides back into negative territory after jumping higher earlier in the day. The stock had popped after Canada’s Alberta Electric System Operator said it had chosen the company to provide additional power for its automated demand response network.

The shares closed at $10.36, down $0.94, or 8.32%, on the day. Its market capitalization is $277.57 million.

Veolia Environnement (ADR (NYSE:VE): Veolia Environnement drifts lower after being downgraded to Hold at Deutsche Bank on valuation, citing a lack of catalysts and high execution risk due to poor visibility.

The shares closed at $10.59, down $0.44, or 3.99%, on the day. Its market capitalization is $5.35 billion.

National Grid plc (NYSE:NGG): It’s on panicky days like these that long-term investors should look at utility stocks, Tim Beyers writes. At least one utility that says it’s in “full restoration mode” from the weekend nor’easter, National Grid, boasts a 7.6% yield and sports a P/E of 9.8, well below the industry norm. Beyers also likes SPH, APU, NRGY and PNG.

The shares closed at $47.75, down $1.54, or 3.12%, on the day. Its market capitalization is $33.99 billion.

Artesian Resources Corp. (NASDAQ:ARTNA): Artesian Resources trades lower after pricing its 800K secondary offering at a 3.3% discount to Thursday’s close. The company plans to use the proceeds to fund a paid-in capital contribution to its Artesian Water subsidiary, which will repay its debt.

The shares closed at $18.33, down $0.39, or 2.08%, on the day. Its market capitalization is $157.51 million.

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