Oil and Gas stocks Trading Alert for December 21st; (OTCBB: AAPH), (NASDAQ:IVAN),
(NASDAQ: ATPG), (NYSE:HAL)

Point Roberts, WA –December 21, 2010 (Investorideas.com Energy Newswire) -
InvestorIdeas.com, a leader in sector research for investors, reports on actively trading oil and
gas stocks to follow for December 21, 2010 . Energy stocks in the green include NASDAQ,
NYSE, TSX and OTC Stocks. Energy investors are bullish again as analysts predict $100 oil
around the corner.

Oil and Gas Stocks to watch include American Petro-hunter Inc (OTCBB: AAPH), Halliburton
Company (NYSE: HAL), ATP Oil & Gas Corp. (NASDAQ: ATPG), and Ivanhoe Energy Inc.
(NASDAQ: IVAN).

Energy investors actively traded shares of Ivanhoe Energy on news of a significant natural gas
discovery at Yixin-2 well on Zitong Block in China.

Energy Sector Snapshot: (Trading at time or release)

American Petro-hunter Inc (OTCBB: AAPH) trading at $0.31, up 0.01 (3.33%)
Halliburton Company (NYSE: HAL), trading at $40.31, up 0.16 (0.40%)
ATP Oil & Gas Corp. (NASDAQ: ATPG) trading at $15.57, up 0.40 (2.64%)
Ivanhoe Energy Inc. (NASDAQ: IVAN) trading at $2.85, up 0.31 (12.20%)

Oil and Gas Stocks News

American Petro-hunter Inc (OTCBB: AAPH) Recent News

American Petro-Hunter Finalizing Completion of NOJ26 Oil Well in Readiness for
Immediate Commercial Production

“SCOTTSDALE, AZ - December 13, 2010 (Investorideas.com energy newswire) – American
Petro-Hunter, Inc. (OTC.BB:AAPH) ("American Petro-Hunter" or the "Company") today wishes
to announce that the Company has now reached the final stage of the ongoing well completion
program of the NOJ26 oil well at the North Oklahoma Project. The well is currently undergoing
preparations to commence commercial production.

The final stage of the completion program is underway and involves the acidization and a
light fracture stimulation of the upper Mississippi oil pay zone formation. Once the program is
concluded this week, the well will be put on pump for immediate production. Scheduling is on
track and facility infrastructure is readied for production and shipment of oil for sale.

As reported earlier, NOJ26 encountered a 40 foot oil pay zone in the Mississippi formation.
The Company and operator are encouraged by data at two analog wells producing from the
same formation less than 1/2 mile away which have cumulatively yielded 46,000 barrels of oil
and .75 BCF gas to date. It is anticipated that NOJ26 will produce an early flash of oil greater
than 100 barrels per day followed by a period of well stabilization. The true test of the well and
its subsequent flow rates will be based on the actual quantity of oil sent to the tanks over the
upcoming weeks and months ahead.”
Full News at: http://www.investorideas.com/CO/AAPH/news/12131.asp
Website: www.aaphreport.com

Visit the AAPH showcase profile on Investorideas.com to learn more:
http://www.investorideas.com/CO/AAPH/

Ivanhoe Energy Inc. (NASDAQ: IVAN)

Recent News:

Ivanhoe Energy announces significant natural gas discovery at Yixin-2 well on Zitong
Block in China
“CALGARY, Dec. 21 , David Dyck, President and Chief Operating Officer of Ivanhoe Energy
Inc. (TSX:IE. ), Robert Friedland, Co-Chairman of Ivanhoe Energy's China-focused subsidiary,
Sunwing Energy Ltd., and Gerry Moench, President of Sunwing, today announced a significant
gas discovery at Sunwing's Yixin-2 well in Southwest China.

Gas from the well flowed at rates of up to 13 million cubic feet per day, and averaged 9 to 10
million cubic feet per day during the initial 24-hour test period. Gas is flowing from the Xu-4
Formation, a well established gas-producing formation in the region.

"We're very pleased with these initial flow rates," Mr. Dyck said. "The rates recorded from the
Xu-4 Formation demonstrate the discovery's strong potential and are incentive for Sunwing
to continue with further development of the Xu-4 formation, and other structures in the Zitong
Block."

Following initial flow and pressure tests, the well has now been shut-in for pressure build-up.

Sunwing's 659,840-acre (1,031-square-mile) Zitong Block is in the Sichuan Province; the oldest
and one of the most productive gas-producing regions in China. Sinopec and PetroChina have
made significant gas discoveries from the Xu-2, Xu-4 and Permian formations in adjacent blocks.”
Full News at: http://finance.yahoo.com/news/Ivanhoe-Energy-announces-prnews-
3064802112.html?x=0&.v=24

Halliburton Company (NYSE: HAL)
Recent News:
Halliburton Confirms Agreement to Settle with Federal Government of Nigeria
“Halliburton announced today the resolution of the previously disclosed investigation by the
Federal Government of Nigeria (FGN) arising out of allegations of improper payments to
government officials in Nigeria in connection with the construction and subsequent expansion by
a joint venture known as TSKJ of a natural gas liquefaction project on Bonny Island, Nigeria, in
which Halliburton's former subsidiary KBR, Inc. had an approximate 25 percent interest.”
Full Article: http://finance.yahoo.com/news/Halliburton-Confirms-bw-1474652721.html?
x=0&.v=1
About Halliburton Company (NYSE: HAL)
Founded in 1919, Halliburton is one of the world’s largest providers of products and services
to the energy industry. With more than 55,000 employees in approximately 70 countries, the
company serves the upstream oil and gas industry throughout the lifecycle of the reservoir –
from locating hydrocarbons and managing geological data, to drilling and formation evaluation,
well construction and completion, and optimizing production through the life of the field. Visit the
company’s website at www.halliburton.com.

ATP Oil & Gas Corp. (NASDAQ: ATPG)
About ATP Oil & Gas Corp. (NASDAQ: ATPG): ATP Oil & Gas is focused on development and
production of oil and natural gas in the Gulf of Mexico and the North Sea. The company trades
publicly as ATPG on the NASDAQ Global Select Market. For more information about ATP Oil &
Gas Corporation, visit www.atpog.com.

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Disclaimer: The following American Petro-Hunter Inc news is paid for by third party on behalf
of showcase energy stock AAPH (twenty thousand per month Nov- revised to two thousand Dec ).
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Petro-hunter Inc (OTCBB: AAPH) contact the company IR directly.