NEW YORK (TheStreet) -- Eni (E), Schlumberger (SLB - Get Report), BP (BP - Get Report), Trina Solar (TSL), Petroleo Brasileiro (PBR.A), Swift Energy (SFY), Gran Tierra Energy (GTE - Get Report), LDK Solar (LDK), TransAtlantic Petroleum (TAT), and InterOil (IOC) are energy stocks with 22% to 69% upside potential, based on analysts' average 12-month price targets. The above stocks have buy ratings of up to 87%, as polled by Bloomberg.

Crude oil prices hit a low of $107.1 during trading hours Monday, but later gained momentum on positive U.S. economic data. Unrest in the Middle East and North Africa supported oil prices. Saudi Arabia's output cuts and lower production levels in Libya are pressing crude oil sentiment higher. At early hours of Thursday, WTI crude hit $112 per barrel, while Brent settled at $124 per barrel.

We have identified 10 energy stocks that are expected to deliver attractive returns over the next one year. Analysts' consensus estimate indicates a potential 69% upside over the next one year.

However, Exxon Mobil ( XOM), Chevron ( CVX), ConocoPhillips ( COP), Royal Dutch Shell ( RDS.A), and Petrochina ( PTR) are expected to return less than 15% in the next one year. Therefore, we have not included these stocks in our portfolio.

10. Eni ( E) engages in oil and natural gas, petrochemicals, and operates in 77 countries.

During the last fiscal, Eni strengthened presence in energy-rich countries like Venezuela and Iraq. The company signed agreements for developing Junin 5 oilfield and discovered Perla, a maxi gas field offshore Venezuela. In Iraq, the company has development projects at the giant Zubair oilfield.

For the fourth quarter of 2010, the company reported net production of 1.95 million barrels of oil equivalent (boe), representing a 2% increase year-over-year. Operating profit and net profit rose 16.6% and 23.6% during the fourth quarter, respectively, compared to the same quarter in 2009.

Capital expenditure amounted to $5.5 billion for the fourth quarter and $19.5 billion for full year 2010. The stock is expected to gain 22% in the next one year with analysts' buy ratings of 60%, and is trading at 7.7 times its estimated 2011 earnings.

9. Schlumberger ( SLB - Get Report) is a supplier of technology, integrated project management and information solutions to the oil and gas industry.

During 2010 fourth quarter, net revenue increased to $9.1 billion compared to $5.7 billion in 2009 fourth quarter. The acquisition of Smith's businesses during the fourth quarter was a revenue booster, contributing nearly $2.5 billion in revenue and pre-tax earnings of $275 million.

Revenue from its North American operations surged 84% year-over-year to $1.6 billion. Revenue from oilfield services grew 16% year-over-year in the December quarter, contributing nearly two-thirds towards revenue. However, Latin America and Europe remain a drag on revenue.

Higher technology needs for exploration and deepwater operations are growth drivers for the stock in 2011.

The stock has analysts' buy ratings of 87% and is likely to deliver returns of 23% in the next one year. The scrip is trading at 11.7 times its estimated 2011 enterprise value per earnings before interest, tax, and depreciation.

8. BP ( BP - Get Report) is an integrated oil and gas company with worldwide interests.

During the fourth quarter of 2010, net sales stood at $79.7 billion, increasing 12% from the same period last year. For full year, sales were up 24% to $297 billion from the year-ago period.

During the fourth quarter of 2010, net income rose 30% year-over-year to $5.6 billion. For full year 2010, net loss was $3.7 billion compared to $16.6 billion in 2009. The company recorded pre-tax charges of $1 billion and $41 billion in the quarterly and annual results, respectively, to cover the additional expenses related to the Gulf of Mexico oil spill disaster.

The company announced a global strategic alliance with Rosneft Oil company during the quarter to explore and develop three license blocks in the Russian Arctic region.

Total capital expenditure for the fourth quarter and full year 2010 was $5.5 billion and $23 billion, respectively.

As per analysts' consensus estimate, average gains are pegged at around 23% during the next one year. The stock is currently trading at 6.2 times its estimated 2011 earnings.

7. Trina Solar ( TSL) is a China-based solar-power products manufacturer with a distribution network panning Europe, North America and Asia.

Net revenue during the fourth quarter of 2010 was $641.8 million, rising 105% year-over-year compared to same period last year. Solar module shipments during 2010 fourth quarter were approximately 351 MW, up 114.3% year-over-year.

Gross profit was $202 million, jumping 97.4% year-over-year. Gross margin was 31.4%, compared to 32.6% in the fourth quarter of 2009. Operating margin was 22.6%, up from 20.6% in the prior year fourth quarter.

Net income was $145.3 million, including net foreign currency exchange gains, compared to a net income of $48.8 million during the fourth quarter of 2009.

"Our growth in 2010 demonstrates the successful execution of our strategy to expand sales across distribution segments and geographic end markets in North America and other exciting photo voltaic markets such as India, Australia and China," said Jifan Gao, CEO of Trina Solar, in a press statement. The stock is expected to deliver 27% in the next one year.

6. Petroleo Brasileiro ( PBR.A) is an integrated Brazilian oil and gas company operating in segments like exploration and production, refining, transportation, and marketing of gas and power.

Net income for 2010 was reported 17% higher than 2009, following demand surge for oil products in the domestic market. In the segmented result, exploration and production contribution to net income was the highest on rising crude oil prices and production volumes.

During 2010, oil products demand was robust â¿" domestic sales grew 13%, while international sales were up 10%.

Experts peg 2011 capex at around $30-35 billion, up from $27 billion in 2010. Most of the 2010 investments were utilized for pre-salt projects.

As per analysts' consensus estimate, average gains are seen at 28% over the next one year. The stock is currently trading at 9.1 times its estimated 2011 earnings.

5. Swift Energy ( SFY) engages in developing, exploring, acquiring and operating oil and gas properties, with a focus on oil and natural gas reserves onshore in Texas and Louisiana, and in the inland waters of Louisiana.

Net income for the fourth quarter of 2010 stood at $10.3 million, declining 29% from $14.6 million in the fourth quarter of 2009 and increasing 10% from $9.4 million in the third quarter of 2010.

Swift Energy produced 2.18 million barrels of oil equivalent (Mboe) during the fourth quarter of 2010, decreasing 1% from fourth quarter 2009 and rising 5% from third quarter 2010.

Total revenue for 2010 fourth quarter rose 1% to $116 million from $115 million in the fourth quarter of 2009, and increased 10% from third quarter 2010 revenue, attributable to improved production and higher crude prices. The stock is trading at 26 times its estimated 2011 earnings with an estimated upside of around 28% over the next one year.

4. Gran Tierra Energy ( GTE - Get Report) is an oil and gas exploration, development and production company, owning oil and gas properties in Colombia, Argentina and Peru.

For the fourth quarter of 2010, the company's average annual production was 14,325 barrels of oil per day, up 13% from 2009.

Revenue for the year stood at $374.5 million, increasing 42% from $263.7 million in 2009. Net income was reported at $37 million, compared to net income of $14 million in 2009.

During 2010, the company acquired working interest in four blocks in Brazil, three blocks in Peru, and drilled and tested three wells in Columbia.

Cash and cash equivalents were $355 million at 2010 end, and the company remains debt free. The stock is trading at 16 times its 2011 earnings with upside estimated at 39% over the next one year.

3. LDK Solar ( LDK) is a vertically integrated manufacturer of PV products and is the world's largest producer of multicrystalline solar wafers.

Gross margin for the fourth quarter of 2010 was 27.3%, compared to 9.9% in the same quarter of fiscal 2009. Net income was $145 million, improving from a net loss of $24.3 million in the year-ago quarter. Net sales were $921 million, compared to $305 million during the fourth quarter of fiscal 2009.

For full-year 2011, LDK Solar guides revenue in the range of $3.5 to $3.7 billion, wafer shipments of 2.7 GW to 2.9 GW, module shipments of 800 MW to 900 MW, and gross margin between 27.0% and 29.0%.

Analysts polled by Bloomberg are positive on the stock and expect it to deliver around 47% return within a year's time.

2. TransAtlantic Petroleum ( TAT) is a vertically integrated international oil and gas company engaged in the acquisition, development, exploration, and production of crude oil and natural gas.

Net oil and gas production for full year 2010, after royalty, surged to 974,000 boe, rising 133% from 2009 on improved output at the Selmo oil field. Additional production at the Arpatepe oil field and new production in the Thrace Basin gas fields also contributed towards higher oil and gas output. For fourth quarter of 2010, net oil and gas production, after royalty, increased 171% year-over-year to 344,000 boe from 127,000 boe during the fourth quarter of 2009.

The company acquired Thrace Basin in November 2010. In a press note, the management said, "We would complete our presence in the Thrace Basin with additional acreage and an operational base on the southern flank of the basin. This would expand our inventory of shallow gas targets and is a very attractive area for deeper conventional and unconventional gas. In addition, the oil field service equipment will serve us well as we continue to ramp up our activity in Turkey."

The stock has 83% analysts' buy ratings and is expected to deliver 52% upside over the next one year.

1. InterOil ( IOC) is an integrated energy company operating in the Pacific region in the upstream, midstream and downstream business segments.

The company executed an agreement with Samsung Heavy Industries and Flex LNG to construct a two million-tonne-per-annum floating liquefied natural gas processing vessel. Besides, InterOil and Liquid Niugini Gas -- a joint venture liquefied natural gas project -- announced to collaborate with Pacific LNG Operations for developing and operating a 3 MTPA land-based modular LNG plant in Papua Guinea.

Commenting on the development of resources, Phil Mulacek, InterOil CEO, said, "We continue to advance our effort to monetize our resources. We believe that our delineation drilling and the resultant annual resource estimate further demonstrates the value of our reservoirs at Elk and Antelope. Our partners, Mitsui & Co., Ltd. and Energy World Corporation, Ltd. continue to progress our project toward a final investment decisions with respect to our planned condensate stripping and LNG facilities, respectively. These achievements, combined with our strong balance sheet, support our continued growth and operational success."

Analysts polled by Bloomberg, the stock has 67% buy ratings and is expected to deliver 69% upside over the next one year.

>>To see these stocks in action, visit the 10 Energy Stocks With Upside portfolio on Stockpickr.