We report structure and rheology (flow property) of diglycerol monomyristate (designated as C14G2) reverse micelles in an aromatic solvent octylbenzene. Structural characterization has been made using small-angle x-ray scattering (SAXS), while flow property is studied using rheometry. SAXS data have been evaluated by the generalized indirect Fourier transformation (GIFT) method and geometrical model fittings. We found that, under ambient conditions of temperature and pressure, C14G2 spontaneously self-organize into ellipsoidal prolate-type micelles with maximum core diameter of about 6.5 nm in octylbenzene. Shape and size of the micelles remain essentially unchanged over wide concentrations (3–20%). On the other hand, micellar size decreases with increase in temperature, which is anticipated to be due to an increase in the critical packing parameter (CPP). Since surfactant becomes lipophilic upon heating, micellar curvature becomes more negative at higher temperatures. Steady-shear rheological experiments showed that the present reverse micelles behave as a Newtonian fluids; measured viscosity is independent of the applied shear. Zero-shear viscosity tends to increase with weight fraction of the surfactant, which is assumed to be caused due to an increase in number density of micelles.