CSX (CSX) (ACHN) (ARMH) (AUTH) (CHK) (PFCB) Ratings, Price Targets

CSX Corp. (CSX), Achillion Pharmaceuticals (ACHN), ARM Holdings plc (ARMH), AuthenTec (AUTH), Chesapeake Energy (CHK) and P.F. Chang's China Bistro (PFCB) had ratings and price targets on them adjusted by analysts.

JMP Securities upgraded Achillion Pharmaceuticals (ACHN) to an "Outperform" rating.

Natixis upgraded ARM Holdings plc (ARMH) from a "Reduce" rating to a "Neutral" rating.

Raymond James upgraded AuthenTec (AUTH) from a "Market Perform" rating to an "Outperform" rating.

Stifel Nicolaus upgraded Chesapeake Energy (CHK) from a "Hold" rating to a "Buy" rating. They placed a price target of $29.00 on the company.

Avondale Partners upgraded CSX Corp. (CSX) from a "Market Perform" rating to an "Outperform" rating.

RBC Capital upgraded P.F. Chang's China Bistro (PFCB) from a "Sector Perform" rating to an "Outperform" rating.

Chesapeake Energy (CHK) Ratings, Price Targets

Chesapeake Energy (NYSE: CHK) ratings and price targets.

Bank of America (NYSE: BAC) initiated coverage on Chesapeake Energy (CHK). They have a "Buy" rating on the firm.

Sterne Agee reiterated its “Buy” rating on Chesapeake Energy.

Jefferies Group (NYSE: JEF) also reiterated its “Buy” rating on Chesapeake Energy.

Robert W. Baird recently initiated coverage on Chesapeake Energy. They have an “Outperform” rating and a price target of $36.00 on the firm.

Chesapeake Energy was trading at $23.78, falling $0.08, or 0.34 percent, as of 11:30 AM EST.

Chesapeake Energy (CHK) Ratings, Price Targets

Updates on Chesapeake Energy (NYSE: CHK) ratings and price targets.

Chesapeake Energy (CHK) had its “Buy” rating reiterated by Jefferies Group (NYSE: JEF). They have a price target of $35.00 on the company.

Chesapeake Energy had its “Buy” rating reiterated by Sterne Agee.

Robert W. Baird initiated coverage on Chesapeake Energy. They placed an “Outperform” rating and a price target of $36.00 on the company.

Citigroup (NYSE: C) reiterated its “Buy” rating on Chesapeake Energy . They have a price target of $32.00 on the company.

Barclays Capital (NYSE: BCS) raised their price target on Chesapeake Energy from $35.00 to $38.00. They have an “Overweight” rating on the company.

Oppenheimer (NYSE: OPY) raised their EPS on Chesapeake Energy. They have an “Outperform” rating on the company.

Canaccord Genuity reiterated a “Buy” rating on Chesapeake Energy. They have a price target of $49.00 on the company.

Mosaic (MOS) (NXPI) (PNFP) (CHK) (COH) Ratings Reiterated

The Mosaic Company (NYSE: MOS), NXP Semiconductors (NASDAQ: NXPI), Pinnacle Financial Partners (NASDAQ: PNFP), Chesapeake Energy (NYSE: CHK) and Coach (NYSE: COH) had ratings on the reiterated by analysts.

Goldman Sachs (NYSE:GS) reiterated its "Buy" rating on The Mosaic Company (MOS).

Jefferies Group (NYSE:JEF) reiterated its "Buy" rating on NXP Semiconductors (NXPI).

Sterne Agee reiterated its "Buy" rating on Pinnacle Financial Partners (PNFP).

Sterne Agee reiterated its "Buy" rating on Chesapeake Energy (CHK).

Zacks Investment Research reiterated its "Neutral" rating on Coach (COH). They have a price target of $64.00 on the company.

Chesapeake (CHK) (HGSI) (LPS) (RAVN) (SCHW) Ratings Reiterated

Chesapeake Energy (NYSE: CHK), Human Genome Sciences (NASDAQ: HGSI), Lender Processing Services Incorporated (NYSE: LPS), Raven Industries, Inc. (NASDAQ: RAVN) and Charles Schwab (NASDAQ: SCHW) had ratings on the reiterated by analysts.

Jefferies Group (NYSE:JEF) reiterated its "Buy" rating on Chesapeake Energy (CHK).

Goldman Sachs (NYSE:GS) reiterated its "Neutral" rating on Human Genome Sciences (HGSI).

Zacks Investment Research reiterated its "Neutral" rating on Lender Processing Services Incorporated (LPS). They have a price target of $16.00 on the company.

Zacks Investment Research reiterated its "Outperform" rating on Raven Industries, Inc. (RAVN). They have a price target of $73.00 on the company.

Zacks Investment Research reiterated its "Neutral" rating on Charles Schwab (SCHW). They have a price target of $12.00 on the company.

IDEX (IEX) (BBCN) (ITI) (KFRC) (CYN) (CHK) Ratings, Price Targets

IDEX Corp. (NYSE: IEX), BBCN Bancorp, Inc. (NASDAQ: BBCN), Iteris, Inc. (NYSE: ITI), Kforce Inc. (NASDAQ: KFRC), City National Co. (NYSE: CYN) and Chesapeake Energy (NYSE: CHK) ratings and price targets.

IDEX Corp. (IEX) had its “Buy” rating reiterated by Jefferies Group (NYSE:JEF).

BBCN Bancorp, Inc. (BBCN) was upgraded by Zacks Investment Research from a “Neutral” rating to an “Outperform” rating.

Iteris, Inc. (ITI) was downgraded by Zacks Investment Research from an “Outperform” rating to a “Neutral” rating.

Kforce Inc. (KFRC) was downgraded by Zacks Investment Research from an “Outperform” rating to a “Neutral” rating.

City National Co. (CYN) was downgraded by Miller Tabak from a “Buy” rating to a “Hold” rating.

Chesapeake Energy (CHK) had its “Buy” rating reiterated by Jefferies Group (NYSE:JEF).

Chesapeake Energy (CHK) Ratings, Price Targets

Updates on Chesapeake Energy (NYSE: CHK) ratings and price targets.

Jefferies Group (NYSE: JEF) reiterated its "Buy" rating on Chesapeake Energy (NYSE: CHK) today.

Other recent analyst action on Chesapeake Energy (CHK) had Citigroup (NYSE: C) reiterating its "Buy" rating on the firm. They have a price target of $32.00 on them.

Barclays Capital (NYSE: BCS) raised its price target from $35.00 to $38.00. They have an "Overweight" rating on the firm.

Robert W. Baird initiated coverage on Chesapeake Energy. They have an "Outperform" rating and a price target of $36.00 on the firm.

Dril-Quip (DRQ) (VRUS) (AEE) (ATK) (CHK) (COR) Price Targets Changed

Dril-Quip (NYSE: DRQ), Pharmasset (NASDAQ: VRUS), Ameren Co. (NYSE: AEE), Alliant Techsystems Inc. (NYSE: ATK), Chesapeake Energy (NYSE: CHK) and CoreSite Realty Corp. (NYSE: COR) had price targets on them adjusted by analysts.

Dril-Quip (DRQ) had its price target lowered by Bank of America (NYSE:BAC) to $76.00.

Ameren Co. (AEE) had its price target raised by UBS AG (NYSE:UBS) from $28.00 to $31.00. They have a “Neutral” rating on the company.

Pharmasset (VRUS) had its price target raised by Goldman Sachs (NYSE:GS) to $77.00.

Alliant Techsystems Inc. (ATK) had its price target lowered by UBS AG (NYSE:UBS) from $100.00 to $80.00. They have a “Buy” rating on the company.

Chesapeake Energy (CHK) had its price target raised by Brean Murray to $43.00.

CoreSite Realty Corp. (COR) had its price target raised by Jefferies (NYSE:JEF) to $19.00.

Chesapeake (CHK) (RA) (PLXT) (REXX) (APEI) (COG) Get New Coverage

Chesapeake Energy (NYSE: CHK), RailAmerica, Inc. (NYSE: RA), PLX Technology Inc (NASDAQ: PLXT), Rex Energy (NASDAQ: REXX), American Public Education (NASDAQ: APEI) and Cabot Oil & Gas (NYSE: COG) get new analyst coverage.

Morgan Keegan initiated coverage on RailAmerica, Inc. (RA). They placed an “Outperform” rating and a price target of $20.00 on the company.

Wunderlich initiated coverage on PLX Technology Inc. (PLXT). They placed a “Hold” rating and a price target of $3.50 on the company.

Brean Murray initiated coverage on Rex Energy (REXX). They placed a “Hold” rating on the company.

Wunderlich initiated coverage on American Public Education (APEI). They placed a “Buy” rating and a price target of $54.00 on the company.

Brean Murray initiated coverage on Chesapeake Energy (CHK). They placed a “Buy” rating and a price target of $40.00 on the company.

Brean Murray initiated coverage on Cabot Oil & Gas (COG). They placed a “Buy” rating and a price target of $98.00 on the company.

Alere (ALR) (CCI) (CERN) (CHK) (EXPE) (KLAC) Price Targets Changed

Alere Inc. (NYSE: ALR), Crown Castle (NYSE: CCI), Cerner Corp. (NASDAQ: CERN), Chesapeake Energy (NYSE: CHK), Expedia, Inc. (NASDAQ: EXPE) and KLA-Tencor (NASDAQ: KLAC) price targets adjusted by analysts.

Alere Inc. (ALR) had its price target lowered by RBC Capital from $35.00 to $32.00. They have a “Sector Perform” rating on the company.

Crown Castle (CCI) had its price target raised by Collins Stewart from $56.00 to $58.00. They have a “Buy” rating on the company.

Cerner Corp. (CERN) had its price target raised by FBR Capital from $66.00 to $72.00. They have an “Outperform” rating on the company.

Chesapeake Energy (CHK) had its price target raised by Goldman Sachs (NYSE:GS) to $41.00.

Expedia, Inc. (EXPE) had its price target raised by Jefferies (NYSE:JEF) to $35.00.

KLA-Tencor (KLAC) had its price target lowered by RBC Capital from $47.00 to $39.00. They have a “Sector Perform” rating on the company.

Cameron (CAM) (CHK) (D) (DD) (MUR) (NBL) Price Targets Changed

Cameron (NYSE: CAM), Chesapeake Energy (NYSE: CHK), Dominion Resources, Inc. (NYSE: D), DuPont (NYSE: DD), Murphy Oil Corp (NYSE: MUR) and Noble Energy (NYSE: NBL) price targets adjusted by analysts.

Cameron (CAM) had its price target raised by RBC Capital from $64.00 to $67.00. They have an “Outperform” rating on the company.

Chesapeake Energy (CHK) had its price target raised by UBS AG (NYSE:UBS) from $33.00 to $36.00. They have a “neutral” rating on the company.

Dominion Resources, Inc. (D) had its price target raised by Barclays Capital from $48.00 to $52.00. They have an “Overweight” rating on the company.

DuPont (DD) had its price target raised by JPMorgan Chase & Co. (NYSE:JPM) to $65.00.

Murphy Oil Corp. (MUR) had its price target slashed by Barclays Capital from $83.00 to $77.00. They have an “Overweight” rating on the company.

Noble Energy (NBL) had its price target raised by RBC Capital from $116.00 to $120.00. They have an “Outperform” rating on the company.

Marathon (MRO) (CHK) (GEOI) (WTI) (BHI) Trade Mixed as Energy Falls

Shares of Marathon Oil (NYSE:MRO), Chesapeake Energy Corp. (NYSE:CHK), GeoResources (NASDAQ:GEOI), W&T Offshore (NYSE:WTI) and Baker Hughes Incorporated (NYSE:BHI) traded mixed on Thursday as oil and gas were down on the day.

Benchmark crude for June delivery fell $1.63 to settle at $98.93 per barrel on the New York Mercantile Exchange.

Brent crude oil for July delivery was down 23 cents, or 0.2 percent, to $112.07.

June, heating oil fell 1.12 cents to settle at $2.8947 a gallon, gasoline dropped 2.95 cents to $2.926 a gallon and natural gas fell 10.5 cents to $4.161 per 1,000 cubic feet.

Linn Energy, LLC (LINE) closed Thursday at $38.35, gaining $0.33, or 0.87 percent. Lufkin Industries, Inc. (LUFK) ended the session at $85.06, up $1.81, or 2.17 percent.

Chesapeake Energy Corp. (CHK) closed Thursday at $29.91, dropping $0.04, or 0.13 percent. Marathon Oil closed at $51.92, gaining $0.39, or 0.76 percent.

Chesapeake Energy Corp. (CHK) Trades Down as Oil Prices Drop

Chesapeake Energy Corp. (NYSE:CHK) was under pressure as oil as gas prices fell Wednesday, dragging most of the energy companies down with them.

Brent crude settled down $5.06 at $112.57 a barrel, while U.S. crude futures dropped $5.67 to settle at $98.21.

Natural gas for June delivery settled 6.5 cents, or 1.5%, lower, at $4.181 per million British thermal units on the New York Mercantile Exchange.

The U.S. Oil Fund (USO) dropped 4.2 percent to closed at $39.35, the Energy Select Sector SPDR Fund (XLE) was down 2.9 percent to close at $74.28, and the U.S. gasoline fund LP (UGA) plunged 6.4 percent to close at $51.44.

Chesapeake Energy Corporation produces natural gas in the United States.

Chesapeake Energy Corp. (CHK) closed Wednesday at $20.35, down $0.14, or 0.68 percent.

Chesapeake Energy Corp. (CHK) Trades Down as Oil Prices Drop

Chesapeake Energy Corp. (NYSE:CHK) was under pressure as oil as gas prices fell Wednesday, dragging most of the energy companies down with them.

Brent crude settled down $5.06 at $112.57 a barrel, while U.S. crude futures dropped $5.67 to settle at $98.21.

Natural gas for June delivery settled 6.5 cents, or 1.5%, lower, at $4.181 per million British thermal units on the New York Mercantile Exchange.

The U.S. Oil Fund (USO) dropped 4.2 percent to closed at $39.35, the Energy Select Sector SPDR Fund (XLE) was down 2.9 percent to close at $74.28, and the U.S. gasoline fund LP (UGA) plunged 6.4 percent to close at $51.44.

Chesapeake Energy Corporation produces natural gas in the United States.

Chesapeake Energy Corp. (CHK) closed Wednesday at $20.35, down $0.14, or 0.68 percent.

Comstock (CRK) (KOG) (CHK) (EGY) Trade Mixed as Oil Prices Rebounded

Shares of Comstock Resources (NYSE:CRK), Kodiak Oil & Gas (Amex:KOG), Chesapeake Energy Corp. (NYSE:CHK) and Vaalco Energy (NYSE:EGY) traded mixed even as oil and gas prices closed Friday in positive territory.

On the New York Mercantile Exchange, crude for June delivery on Friday settled at $99.65 a barrel, up 68 cents, or 0.69 percent, after trading in a range of $97.09 to $100.70.

For the week, front-month crude climbed $2.47, or 2.5 percent.

ICE Brent for June delivery settled at $113.83 a barrel, up 85 cents, or 0.75 percent, after trading in a range of $111.72 to $114.92. The Brent crude contract for July delivery was at 66 cents, or 0.6 percent higher on Friday, at $112.99. Last week, Brent crude jumped $4.70, or 4.3 percent.

The U.S. dollar index was up 0.8 percent higher at $75.72 as the euro was down 1 percent against the dollar at $1.411. On Friday, European officials said that Greece, Ireland and Portugal's sovereign debt problems may be worse than previously believed.

NYMEX June gasoline settled at $3.0744 a gallon, up 1.05 cents, or 0.34 percent, after trading in a range of $3.0342 to $3.1388.

For the week, front-month RBOB fell 1.57 cents, or 0.5 percent.

NYMEX June heating oil closed at $2.9422 a gallon, rising 2.85 cents, or 1 percent.

Front-month heating oil for last week was up 9.65 cents.

Chesapeake Energy Corp. (CHK) closed Friday at $29.78, dropping $0.70, or 2.30 percent.

Chesapeake Energy (CHK) Trades Up as Oil, Gas Rise

Crude oil, natural gas and gasoline prices jumped Tuesday, pushing up the share price of Chesapeake Energy Corp. (NYSE:CHK).

Benchmark crude for May delivery rose $1.33 to settle at $103.88 a barrel on the New York Mercantile Exchange.

Heating oil jumped 3.94 cents to settle at $3.0012 a gallon. Gasoline futures climbed 10.13 cents to settle at $3.3797 a gallon, while natural gas for June delivery increased 8.7 cents to settle at $4.303 per 1,000 cubic feet.

Chesapeake Energy Corporation produces natural gas in the United States from onshore fields.

Chesapeake Energy Corp. (CHK) closed at $31.62, gaining $0.32, or 1.02 percent.

Marathon (MRO) (CHK) (VQ) (DRQ) (APA) Trade Up as Oil Prices Rebound

Most oil and related companies performed strong Monday, as Marathon Oil (NYSE:MRO), Chesapeake Energy Corp. (NYSE:CHK). Venoco Inc. (NYSE:VQ), Dril-Quip, Inc. (NYSE:DRQ) and Apache Corp (NYSE:APA) traded up as the price of oil rebounded.

Crude oil for June delivery climbed $5.37 to settle at $102.55 a barrel on the New York Mercantile Exchange, the largest one-day boost since February 22.

Brent crude for June settlement jumped $6.77, or 6.2 percent, to $115.90 a barrel on the London-based ICE Futures Europe exchange.

Wholesale gasoline prices soared 5 percent on Monday to $3.20 a gallon on fears that refineries in Mississippi may have to shut down because of the Mississippi River flooding.

The average U.S. price of a gallon of regular gasoline Monday fell by a penny to $3.96, according to AAA.

Immediate delivery futures of Texas crude oil rose $5.53 to $102.71 a barrel. Natural gas was up 0.06 cents to $4.17 per mbtu, while gasoline prices fell 20.17 cents to 329.18 cents a gallon.

Marathon Oil (MRO) closed Monday at $52.19, climbing $2.62, or 5.29 percent.

Shares of (CHK) (GEOI) (RRC) (NOV) (RDS-A) Trade Mixed as Oil Closed Down 15% Last Week

Companies exposed to oil and the industry traded mixed to end the week, as oil prices plummeted 15 percent last week, taking Chesapeake Energy Corp. (NYSE:CHK), GeoResources (NASDAQ:GEOI), Range Resources (NYSE:RRC), National-Oilwell Varco, Inc. (NYSE:NOV) and Shell (NYSE:RDS-A), and others, down with it.

Light, sweet crude oil for June delivery on the New York Mercantile Exchange dropped $2.62 to settle at $97.18 a barrel, matching the eight-week low of March 15. The U.S. Oil Fund (USO) closed down 1.1 percent on Friday.

For the week, the June oil futures contract fell 14.7 percent to $113.93.

Light, sweet crude for June delivery fell $2.62, or 2.6%, to close at $97.18 a barrel on the New York Mercantile Exchange.

In London, Brent crude finished the day off $1.67 at $109.13 per barrel on the ICE Futures exchange.

Republicans went on the offensive against higher oil and gas prices by passing a bill to hasten the leasing process dragging on in the Gulf of Mexico as the Obama administration drag their feet on taking action. The bill would also require leasing to be allowed off the coast of Virginia.

According to Rep. Michael Burgess (R-Texas), the bill helped push down the price of oil as it sent a message to the market they're serious about the future supply.

All Obama has done so far has obsessed on the fantasy of green, clean or so-called alternative energy; a dubious matter at best, and at worst, ignoring what they country needs now and is available to it.

In other Nymex trading for June contracts, heating oil fell 4.12 cents to $2.8457 a U.S. gallon and gasoline futures were down 0.53 cents to $3.0901 a U.S. gallon. Natural gas fell 3.4 cents to $4.297 per 1,000 cubic feet.

Chesapeake Energy Corp. (CHK) closed Friday at $30.95, gaining $0.09, or 0.29 percent.

Marathon Oil (MRO) (CPE) (CHK) (END) (TAT) Pressured as Oil Falls

Shares of oil and oil-related companies Marathon Oil (NYSE:MRO), Callon Petroleum (NYSE:CPE), Chesapeake Energy Corp. (NYSE:CHK), Endeavour International (NYSE:END) and TransAtlantic Petroleum (NYSE:TAT) were pressured Thursday as crude for June delivery dropped below the $100 a barrel mark.

Crude oil for June delivery was down $9.44, or 8.6 percent, to $99.80 a barrel on the New York Mercantile Exchange. The price has fallen 12 percent so far this week, declining every day of the week. Crude has soared 25 percent over the last year.

Gasoline for May delivery was down 22.71 cents, or 6.8 percent, to $3.0954 a gallon on the Nymex, the lowest settlement in five weeks. Gasoline has jumped 39 percent in a year.

Averaged across the nation, regular gasoline at the pump increased 0.3 cent to $3.985 a gallon on Wednesday, according to the website of AAA. That's highest price of gasoline since July 24, 2008.

Heating oil for May delivery was down 25.61 cents, or 8.1 percent, to $2.8869 a gallon on the Nymex. Heating oil has climbed 32 percent over the last year.

The New York Mercantile Exchange reported that oil futures settled at $99.80, down $9.44 or 8.6 percent on Thursday.

Government figures show gasoline demand in America has dropped about 2 percent over the last month, which added to rises in inventory, should push gasoline prices down again.

Marathon Oil (MRO) closed Thursday at $49.55, down $2.00, or 3.88 percent.

Chevron (CVX) (CHK) (BEXP) (CRZO) (HNR) Trade Down on Slowing Oil Demand

Oil companies and other industry-related companies Chesapeake Energy Corp. (NYSE:CHK), Brigham Exploration (NASDAQ:BEXP), Carrizo Oil & Gas (NASDAQ:CRZO), Harvest Natural Resources (NYSE:HNR) and Chevron (NYSE:CVX) all closed down Wednesday as oil prices took a breather.

Oil prices dropped after a government report showed that inventories are growing as demand softens in the U.S. Benchmark crude for June delivery was down $1.81 to settle at $109.24 a barrel on the New York Mercantile Exchange.

In other NYMEX trading for June contracts, heating oil fell 4.78 cents to settle at $3.143 a gallon, gasoline futures lost 0.69 cent to $3.3225 a gallon and natural gas was lower by 9.4 cents to $4.644 per 1,000 cubic feet.

The U.S. dollar index shrunk 0.15 percent to $73.01, down from Tuesday's 73.127 close. The dollar index has fallen 7.5 percent so far in 2011.

Brigham Exploration (BEXP) closed Wednesday at $28.50, falling $3.19, or 10.07 percent.