International companies trading in New York closed higher Monday, with the Bank of New York index of American depositary receipts adding 0.8% to 156.10. The European index rose 0.9% to 152.18, the Asian index added 0.3% to 154.13, the Latin American index climbed 1.3% to 309.38, and the emerging-markets index rose 0.8% to 312.26. Among the companies with shares that actively traded were Statoil ASA (STO, STL.OS) and Chinese solar stocks.

Statoil has warned that western countries' sanctions against Russia will slow the process of getting the go-ahead for some of its joint ventures with Russian oil group OAO Rosneft. Norway's largest oil group said on Monday that it will stand by its 27-month-old partnership with the state-controlled Russian company as it hopes diplomacy will resolve the standoff between the U.S. and Europe and Russia over the crisis in Ukraine. Statoil shares edged up 0.6% to $28.38.

Several Chinese solar stocks posted gains after an Indian senior government official on Monday said India dropped a plan to impose antidumping tariffs on solar cells imported from the U.S., China, Taiwan and Malaysia as the South Asian nation looks to give a boost to its solar-power ambitions and cut dependence on imported fossil fuels. Shares of Yingli Green Energy Holding Co. (YGE) rose 5.3% to $3.78, while JinkoSolar Holding Co. (JKS) added 0.1% to $29.12 and Trina Solar Ltd. (TSL, K3KD.SG) edged up 0.5% to $13.37.

Luxottica Group SpA (LUX, LUX.MI), the world's largest eyewear maker, said it called a board meeting for Sept. 1, to "consider the management structure" of the company and the position of Chief Executive Andrea Guerra. The announcement comes after reports last week that Mr. Guerra, who has been chief executive at Luxottica since 2004, could be about to resign over disagreements with founder and majority shareholder Leonardo Del Vecchio. Shares edged up 0.6% to $51.57.

Shares of Brazil's oil exploration and refining giant Petroleo Brasiliero SA (PBR, PETR3.BR, PETR4.BR) moved higher Monday, continuing a recent see-saw, according to Barron's Blog. Shares have been volatile lately, and on Monday rose 5.1% to $18.08.

Write to Anna Prior at anna.prior@wsj.com

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