Also, Cnooc and Sinopec need to repay loans they took out to buy assets.
U.S. officials also recently approved a deal that allowed Chinese state-run oil company Cnooc Ltd.
Sources attribute the online postings to employees of CNOOC, as the state oil giant is known.
Offshore oil producer Cnooc rebounded 1.3% in Hong Kong after falling 5.5% over the past three sessions.
Cnooc is currently in the hunt for oilfields off the coast of Ghana, vying with ExxonMobil and BP.
My Buffett-based model also likes CNOOC, whose EPS have declined in just one year of the past decade.
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Still, many investors believe the relatively high yield on the Cnooc bond provided ample cushion against such a risk.
Offshore oil producer Cnooc was down just 0.3% in Hong Kong after falling 5.5% over the past three sessions.
The deals were structured so that Cnooc didn't get an ownership stake in Chesapeake itself and didn't control production.
Or when China's CNOOC oil company put up a bid for the American oil firm Unocal a year earlier?
Pension fund boards in California, Florida, Illinois and Minnesota list CNOOC as a restricted company or a company under scrutiny.
When CNOOC launched its bid in April, it seemed to confirm a trend: Chinese companies were on a buying spree.
Cnooc, by virtue of a JV it formed with Nexen last November, was already a 20% partner in Kakuna.
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Among energy plays, Woodside Petroleum gained 1.9% in Sydney, Inpex rose 1.6% in Tokyo and Cnooc climbed 1.1% in Hong Kong.
Reliance has also spent billions acquiring stakes in U.S. natural gas projects, though it reportedly lost the Chesapeake deal to CNOOC.
In 2005 CNOOC, a Chinese oil firm, withdrew a bid for Unocal, a Californian producer, after American politicians kicked up a stink.
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State-owned oil company Cnooc Ltd. ran into a firestorm when it tried to buy Unocal Corp. in 2005, to name but one example.
From now on, CNOOC will acquire stakes in assets rather than buying an entire company, Fu Chengyu, chairman of the company, said earlier.
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Cnooc said it will continue to track its debt-to-equity ratio to make it comparable with its peers, and will maintain healthy and stable financials.
The deal also underscores CNOOC's greater presence in the region, where it must compete with the likes of Petrobras and Repsol-YPF to remain relevant.
The US has approved the sale of Canadian oil firm Nexen to China's state-owned CNOOC, clearing the way for the deal to be completed.
Until then, if the Obama administration is serious about making its sanctions strategy work, it should put CNOOC to a choice between Tehran and Texas.
Yergin says Americans are just now waking up to China's growing appetite for oil, as illustrated by the Chinese company CNOOC's aborted bid for Unocal.
Sinopec has been vying with sister company Cnooc for overseas assets.
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To be sure, some analysts are concerned about Cnooc's mounting debt.
State oil giant CNOOC (CEO) is in the U.S. oil business.
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The China National Offshore Oil Corp, CNOOC (CEO), operates the field.
Statoil, like Cnooc, is majority government-owned (see Statoil: The Government Oil Play), but no politicians had made a peep about Norwegians invading the U.S. oilpatch.
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But Chinese firms have also had trouble investing in the U.S., most famously in 2005 when Cnooc pulled its effort to acquire Unocal amid fierce political opposition.
Zhong Hua, chief financial officer of the publicly traded arm of China's Cnooc, said in an interview that the company's U.S. exposure will advance its technical know-how.
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