Ma'an reports:

Egyptian authorities have restricted the amount of Qatari fuel entering the Gaza Strip through an Egyptian crossing with Israel, an Egyptian source said Monday.

While the Al-Ouja crossing in Egypt's northern Sinai has the capacity for ten trucks of fuel per day, Egypt only permits six trucks to cross, the official said, noting that this amount cannot meet Gaza's energy needs.
And Hamas is now also blaming Egypt, not Israel, for the current fuel shortage, saying that it has documented Egyptian fuel trucks arriving late to the Al Ouja crossing while Israeli fuel trucks are waiting to receive it.