Although this cannot be commercially exploited at the present time, the amount of combustible energy of the known methane clathrate fields exceeds the energy content of all the natural gas and oil deposits put together.
ɔːlðˈoʊ ðɪs kænˈɑːt biː kəmˈɜːʃəli ɛksplˈɔɪɾᵻd æt ðə pɹˈɛzənt tˈaɪm, ðɪ ɐmˈaʊnt ʌv kəmbˈʌstᵻbəl ˈɛnɚdʒi ʌvðə nˈoʊn mˈɛθeɪn klˈæθɹeɪt fˈiːldz ɛksˈiːdz ðɪ ˈɛnɚdʒi kˈɑːntɛnt ʌv ˈɔːl ðə nˈætʃɚɹəl ɡˈæs ænd ˈɔɪl dᵻpˈɑːzɪts pˌʊt təɡˈɛðɚ.