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We present measurements of the X-ray observables of the intra-cluster medium(ICM), including luminosity $L_X$, ICM mass $M_{ICM}$, emission-weighted meantemperature $T_X$, and integrated pressure $Y_X$, that are derived fromXMM-Newton X-ray observations of a Sunyaev-Zel'dovich Effect (SZE) selectedsample of 59 galaxy clusters from the South Pole Telescope SPT-SZ survey thatspan the redshift range of $0.20 < z < 1.5$. We constrain the best-fit powerlaw scaling relations between X-ray observables, redshift, and halo mass. Thehalo masses are estimated based on previously published SZE observable to massscaling relations, calibrated using information that includes the halo massfunction. Employing SZE-based masses in this sample enables us to constrainthese scaling relations for massive galaxy clusters ($M_{500}\geq 3\times10^{14}$ $M_\odot$) to the highest redshifts where these clusters existwithout concern for X-ray selection biases. We find that the mass trends aresteeper than self-similarity in all cases, and with $\geq 2.5{\sigma}$significance in the case of $L_X$ and $M_{ICM}$. The redshift trends areconsistent with the self-similar expectation, but the uncertainties remainlarge. Core-included scaling relations tend to have steeper mass trends for$L_X$. There is no convincing evidence for a redshift-dependent mass trend inany observable. The constraints on the amplitudes of the fitted scalingrelations are currently limited by the systematic uncertainties on theSZE-based halo masses, however the redshift and mass trends are limited by theX-ray sample size and the measurement uncertainties of the X-ray observables.

X-ray Properties of SPT Selected Galaxy Clusters at 0.2