Soon after the news of Japanese attack on Pearl Harbor, Japanese planes were seen making reconnaissance flights over Miri. The Brooke government decided on a complete destruction of oilfields and airfields in Miri. Shell company officials received orders to carry out the Denial Scheme on 8 December 1941. In the evening on the same day, the task was completed. All producing oil wells were sealed up with vital equipment and machinery dismantled and shipped off to Singapore. Skilled workers and important company papers also went along with the equipment and sent to Singapore. The Punjab Regiment and several officials were sent to guard Kuching. On 16 December 1941, 9 days after the Pearl Harbor bombing, Japanese troops consisting of 10,000 men landed on Tanjung Lobang Beach, Miri without much resistance. However, on 17 December 1941, a Dutch flying boat from Tarakan Island attacked the Japanese destroyer "Shinonome" (under the command of Hiroshi Sasagawa) off Miri. The ship was sunk along with the entire crew of 228. Another flying boat X-33 also damaged a Japanese transport ship. After the fall of Singapore on 15 January 1942, skilled workers that went into hiding with their equipment were sent back to Miri by the Japanese. They were immediately put to work for Japanese oil supply service company named Nen Ryo Hai Kyu. Much of the Japanese oil drilling and refinery equipment was portable. A total of were produced during the Japanese occupation from 1941 to 1945.