Table 1. Lead 4f7/2 binding energy values (eV) [1].

Pb 4f7/2 - Pb 4f5/2 doublet separation = 4.88 eV +/- 0.05 eV (9 references).  [2] has it at 4.86 eV.

For the metal and sulfide (galena) the FWHM is fairly narrow at around 0.6-0.65 eV (20 eV pass energy). For PbCO3 the FWHM is about 1.46 eV (at 20 eV pass energy).

I've yet to be able to get good reference spectra for the oxides. Usually the peaks have been split although I'm not sure why just yet.  Possibly impure standards, X-ray degradation of the oxides, differential charging or a mix of all three. However, from the above data we see that the binding energy values for the various oxides overlap somewhat. The only good spectrum of an oxide I've taken is that for a sputtered cleaned surface that was then exposed to air for 1 minute.  A peak at 138.1 eV was recorded for this oxide with a FWHM of 1.26 eV (at 20 eV pass energy).

Also interesting is that the halide binding energy values don't change significantly down the series from the fluoride to the bromide and only slightly down with the iodide.

[1] C.D. Wagner, A.V. Naumkin, A. Kraut-Vass, J.W. Allison, C.J. Powell, J.R.Jr. Rumble, NIST Standard Reference Database 20, Version 3.4 (web version) (http:/srdata.nist.gov/xps/) 2003.
[2] J.F. Moulder, W.F. Stickle, P.E. Sobol, K.D. Bomben, Handbook of X-ray Photoelectron Spectroscopy, Perkin-Elmer Corp, Eden Prairie, MN, 1992.