In fact, the rate at which any well ​ — or any country — ​ can produce oil always rises to a maximum and then, when about half the oil is gone, begins falling gradually back to zero.
Tegelikult saab iga naftapuurtorn – või iga riik – toota naftat tempos, mis algul tõuseb maksimumini, siis aga, kui umbes pool naftast on ammutatud, langeb tasapisi kuni nullini tagasi.