TRADE RECEIVABLES continued Financial Information | Perusahaan Gas Negara Persero Tbk PT

PT PERUSAHAAN GAS NEGARA PERSERO TBK DAN ENTITAS ANAKAND SUBSIDIARIES Halaman 586 Page CATATAN ATAS LAPORAN KEUANGAN KONSOLIDASIAN 31 DESEMBER 2016 DAN 2015 Disajikan dalam Dolar Amerika Serikat, kecuali dinyatakan lain NOTES TO CONSOLIDATED FINANCIAL STATEMENTS DECEMBER 31, 2016 AND 2015 Expressed in US Dollar, unless otherwise stated 15. ASET MINYAK DAN GAS lanjutan 15. OIL AND GAS ASSETS continued

b. Properti minyak dan gas lanjutan

b. Oil and gas properties continued

31 DesemberDecember 2015 Saldo awal Saldo akhir Beginning Penambahan Akuisisi Pengurangan Ending balance Addition Acquisition Deduction balance Harga perolehan Cost - Ketapang, Jawa Timur 204,181,022 34,898,178 - - 239,079,200 Ketapang, East Java - - Bangkanai, Bangkanai, - Kalimantan Tengah 78,584,352 7,355,935 - - 85,940,287 Central Kalimantan - Pangkah, Jawa Timur 941,387,478 65,710,431 - 42,301,419 964,796,490 Pangkah, East Java - - Fasken, Texas 177,737,477 72,235,358 - - 249,972,835 Fasken, Texas - - Muriah, Jawa Tengah 101,051,000 11,463,596 - - 112,514,596 Muriah, Central Java - - Southeast Sumatra, Southeast Sumatera, - Sumatera 53,042,816 5,716,825 - - 58,759,641 Sumatra - Muara Bakau, Muara Bakau, - Kalimantan - 241,782,799 70,890,494 - 312,673,293 Kalimantan 1,555,984,145 439,163,122 70,890,494 42,301,419 2,023,736,342 Accumulated Akumulasi penyusutan, depreciation, deplesi, depletion dan amortisasi and amortisation - Ketapang, Jawa Timur - 10,010,462 - - 10,010,462 Ketapang, East Java - - Pangkah, Jawa Timur 99,053,407 107,461,487 - - 206,514,894 Pangkah, East Java - - Fasken, Texas 3,169,381 18,982,029 - - 22,151,410 Fasken, Texas - - Muriah, Jawa Tengah - 3,149,460 - - 3,149,460 Muriah, Central Java - - Southeast Sumatra, Southeast Sumatera, - Sumatera 630,388 10,755,812 - - 11,386,200 Sumatra 102,853,176 150,359,250 - - 253,212,426 Akumulasi Acumulated penurunan nilai impairment - Ketapang, Jawa Timur 12,681,022 - - - 12,681,022 Ketapang, East Java - - Pangkah, Jawa Timur 1,881,100 89,097,242 - - 90,978,342 Pangkah, East Java - - Fasken, Texas 11,068,096 - - - 11,068,096 Fasken, Texas - - Southeast Sumatra, Southeast Sumatera, - Sumatera 10,912,425 8,552,055 - - 19,464,480 Sumatra 36,542,643 97,649,297 - - 134,191,940 Nilai buku, bersih 1,416,588,326 1,636,331,976 Net book value PT PERUSAHAAN GAS NEGARA PERSERO TBK DAN ENTITAS ANAKAND SUBSIDIARIES Halaman 587 Page CATATAN ATAS LAPORAN KEUANGAN KONSOLIDASIAN 31 DESEMBER 2016 DAN 2015 Disajikan dalam Dolar Amerika Serikat, kecuali dinyatakan lain NOTES TO CONSOLIDATED FINANCIAL STATEMENTS DECEMBER 31, 2016 AND 2015 Expressed in US Dollar, unless otherwise stated 15. ASET MINYAK DAN GAS lanjutan 15. OIL AND GAS ASSETS continued

b. Properti minyak dan gas lanjutan

b. Oil and gas properties continued

Pada tahun 2016 terdapat penyesuaian biaya pembongkaran sebesar USD5.978.245 akibat perubahan estimasi proyeksi biaya yang dicatat sebagai penambahan biaya perolehan. In 2016 there was an adjustment to the dismantling cost amounting to USD5,978,245 due to the change in estimation of projected cost that are recorded as additional cost. Pada tahun 2015 terdapat penyesuaian biaya pembongkaran sebesar USD42.301.419 akibat perubahan estimasi proyeksi biaya yang dicatat sebagai pengurang biaya perolehan. In 2015, there was an adjustment of dismantling cost amounting to USD42,301,419 due to the change in estimation of projected cost that are recorded as deduction of cost. Penurunan nilai properti minyak dan gas atas secara umum disebabkan oleh penurunan prediksi harga minyak masa depan selama masa PSC pada masing-masing blok minyak dan gas. Impairment in oil and gas properties is triggered primarily by the decrease in the forecast oil price during the period of PSC for each oil and gas block. Pada tanggal 31 Desember 2016, seluruh sumur, perlengkapan dan fasilitas terkait diasuransikan dengan nilai pertanggungan sebesar USD993.766.842. As of December 31, 2016, all wells and related equipment and facilities were insured amounted to USD993,766,842.

c. Uji penurunan nilai atas properti minyak dan

gas c. Impairment test on oil and gas properties Pengujian penurunan nilai atas properti minyak dan gas dilakukan ketika terdapat suatu indikasi bahwa nilai tercatat properti minyak dan gas tersebut mengalami penurunan. Dalam hal ini, manajemen Grup menentukan hak kepemilikan pada masing-masing blok sebagai satu UPK. Impairment test on oil and gas properties is performed when there is an indication that oil and gas properties carrying value may have impaired. In this matter, the management of the Group determined the participating interests in the respective blocks as a CGU. Jumlah terpulihkan UPK dinilai dengan menggunakan proyeksi arus kas berdasarkan pendapatan yang akan diterima dari kegiatan produksi minyak dan gas dengan periode proyeksi hingga akhir masa PSC. Rencana produksi pada proyeksi arus kas ini tidak melampaui cadangan minyak dan gas atau akhir masa PSC. The recoverable amount of the CGUs is determined using cash flow projections based on revenue generated from oil and gas production and projections until the end of PSC. Production plan used in the cashflow projection, do not exceed oil and gas reserves or the end of the period of PSC. Perhitungan arus kas diskontoan yang digunakan meliputi proyeksi arus kas di masa depan dan mendiskontokannya menjadi nilai kini. Proses pendiskontoan menggunakan tingkat pengembalian yang sesuai dengan risiko terkait dengan bisnis atau aset dan nilai waktu uang. A discounted cash flow calculation was used, which involved projecting cash flows and discounting them back to present value. The discounting process uses a rate of return that is commensurate with the risk associated with the business or asset and the time value of money. Manajemen menentukan asumsi utama berdasarkan kombinasi pengalaman masa lalu dan sumber eksternal. Management determined the key assumptions based on a combination of past experience and external sources.