* 6-mth recurring profit 141.7 bln yen vs 166 bln loss yr-ago
* Apr-Sept net profit 616.2 bln yen vs yr-ago 299.5 bln yen loss
* Half-yr sales up 12 pct to 3.22 trln yen
TOKYO, Oct 31 (Reuters) - Tokyo Electric Power Co reported its first half-year profit since the Fukushima nuclear disaster in 2011, but faces an uncertain future as the government threatens to split the utility, which has struggled with cleaning up the site.
Tokyo Electric, or Tepco, faces huge compensation claims and has set aside just a fraction of the funds needed to decommission the crippled Fukushima Daiichi station, following reactor meltdowns in March 2011 that forced 160,000 people to flee their homes.
Japan's atomic regulator all but told Tepco this week to forget about restarting another of its nuclear plants, which would help it cut costs as part of a restructuring plan - now being revised - and focus on the mounting problems at the Fukushima site.
Tepco said it made a recurring profit - before taxes and one-offs - of 141.7 billion yen ($1.44 billion) in April-September after cutting costs and selling assets. Net profit was 616.2 billion yen, versus a year-earlier loss of 299.5 billion yen, after receiving 666.2 billion yen from the government to pay out in disaster compensation, and a 74.2 billion yen gain from selling assets.
Revenue rose nearly 12 percent from last year to 3.22 trillion yen.
Tepco, which has only once reported an annual net profit since 2007, when an earthquake damaged another of its nuclear stations, gave no full-year profit forecasts.
STRIPPED OF RESPONSIBILITY
Tepco has been widely criticized for repeated missteps, poor disclosure and a lack of planning in its efforts to clear up the site of the worst nuclear disaster since Chernobyl in 1986.
The company should be stripped of the responsibility for shutting down Fukushima, according to a draft proposal this week from a panel of Japan's ruling Liberal Democratic Party.
A person familiar with the panel's deliberations said it favours an option of creating a separate organization within Tepco to handle the clean-up. The policy recommendations will be presented to Prime Minister Shinzo Abe as soon as next week.
Japan has provided Tepco with a 5 trillion yen credit line for compensating evacuees and damaged businesses, but Tepco has already said it may need twice that.
"The government seems to be pretty concerned about our situation. Our view that Tepco cannot shoulder all the costs for decontamination and decommissioning remains unchanged," Tepco's president Naomi Hirose told reporters on Thursday. "I hope they consider that in their discussions."
The Japan Center for Economic Research, an independent think-tank, reckons total decommissioning costs at Fukushima may be at least $100 billion. Tepco has said it will set aside about $20 billion for the clean-up.
To help cut its fuel costs, Tepco wants to restart reactors at its Kashiwazaki Kariwa nuclear power station, the world's biggest, but it has met stiff opposition from the local prefectural governor.
All of Japan's 50 nuclear reactors have been shut down for safety checks, with no firm restart schedule - forcing utilities to increase imports of fossil fuels that have helped push Japan into a trade deficit.
Some though, including Kansai Electric Power Co, are returning to profitability after raising electricity prices and pruning costs.
Price rises, however, mean the utilities are losing customers to an increasing number of independent power companies that are taking advantage of moves by the government to free up Japan's tightly regulated power market.
($1 = 98.1450 Japanese yen)
(Editing by Ian Geoghegan)