evidence: As reserves closer to shore run dry, Malaysia is venturing farther into disputed waters of the South China Sea claimed and patrolled by China. [...] A handful of Chinese vessels patrol the waters at Luconia Shoals, about 60 nautical miles off the Malaysian coast, near major gas fields like Kasawari. But a much bigger fleet of hundreds of Chinese coast guard ships and maritime militia are based farther north, near the Spratly Islands, where Petronas has designated new clusters for oil and gas exploration. The closer Malaysia’s energy projects come to the Spratlys, the greater the likelihood of confronting the Chinese, said Harrison Prétat, deputy director at the Asia Maritime Transparency Initiative at D.C.-based Center for Strategic and International Studies. [...] Petronas rejected requests for interviews and did not respond to inquiries about the South China Sea. But last year, after Beijing released a new map of the waterway that expanded Chinese claims, Petronas’ chief executive, Tengku Muhammad Taufik Aziz, made an unusually strong statement of objection. Extracting offshore oil and gas is within Malaysia’s sovereign rights, he said. "Petronas," he added, "will very vigorously defend Malaysia’s rights."