  A leading twist expansion in terms of bi-local operators is proposed for the
structure functions of deeply inelastic scattering near the elastic limit $x
\to 1$, which is also applicable to a range of other processes. Operators of
increasing dimensions contribute to logarithmically enhanced terms which are
supressed by corresponding powers of $1-x$. For the longitudinal structure
function, in moment ($N$) space, all the logarithmic contributions of order
$\ln^k N/N$ are shown to be resummable in terms of the anomalous dimension of
the leading operator in the expansion.
