By David French

DUBAI, April 23 (Reuters) - Saudi Telecom Co (STC)

7010.SE , the Gulf's biggest telecommunications operator by market value, has picked three banks to manage its debut Islamic bond offer, banking sources aware of the transaction told Reuters on Wednesday.

It has chosen JP Morgan Chase JPM.N , Standard Chartered

STAN.L and the investment banking arm of Saudi Arabia's National Commercial Bank to arrange the transaction, three sources said, speaking on condition of anonymity as the information isn't public.

STC declined to comment.

The sources said it was currently unclear if STC was looking to complete a sukuk issue in the local Saudi market, or if the sukuk would be U.S. dollar-denominated and sold to international investors.

Shareholders of STC approved the issuance of bonds both inside and outside the kingdom at an April 2 meeting, according to a bourse statement on the following day.

Should STC decide to print a dollar trade, it is likely to draw considerable interest from investors, given the rarity of Saudi credits issuing outside the kingdom.

When Saudi Electricity Co 5110.SE printed a $2.5 billion offer split between 10-year and 30-year sukuk earlier this month, it attracted demand worth more than $10 billion.

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An STC issue would allow the company to diversify its funding base to a much greater extent, away from the Saudi banks from which it has traditionally secured much of its financial needs.

A sukuk denominated in Saudi riyals is more likely, the sources said, as the cost of funding would be cheaper for STC since local investors have large pools of liquidity to deploy.

A number of Saudi companies have tapped the local sukuk market in recent months, including SEC, dairy firm Almarai

2280.SE and construction giant Saudi Binladin Group.

STC has been drawing back from international markets in recent months to focus on its home business - a point reiterated by chairman and managing director Abdulaziz Alsugair when the operator posted a 54 percent jump in first-quarter profit on Monday on lower provisions and losses from foreign units.

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It completed the sale of its Indonesian subsidiary Axis to Malaysia's Axiata Group Bhd AXIA.KL during the first quarter.

(Additional reporting by Matt Smith; Editing by Andrew Torchia)

((davidj.french@thomsonreuters.com)(+971 4 362 5864)(Reuters Messaging: davidj.french.thomsonreuters.com@reuters.net))

Keywords: SAUDI TELECOM SUKUK