I claim the ornamental design for a fragrant oil burning lamp, as shown and described.
FIG. 1 is an exploded perspective view of a fragrant oil burning lamp, showing my new design and illustrating a top portion removable from a base portion and a fragrant oil reservoir tube that normally rests in the base portion;
FIG. 2 is a front elevational view of the invention;
FIG. 3 is a rear elevational view of the invention;
FIG. 4 is a left-side elevational view of the invention;
FIG. 5 is a right-side elevational view of the invention;
FIG. 6 is a top plan view of the invention;
FIG. 7 is a bottom plan view of the invention; and,
FIG. 8 is a top plan view of the invention, illustrated with a top of the lamp removed to expose a fragrant oil reservoir.