Developments in the Mexia fault zone since January, 1923, have shown that the several oil and gas pools in this zone are bounded on the west by distinct faults which overlap one another in a definite manner. The conditions attending these faults suggest that torsional stress operated in their orlgin.

In the producing fields the faults have been found to be relatively complicated. Correlation of logs in the Currie pool, described here as an example, shows that more than one fault is involved in the displacement, and that this local fault zone dips more steeply in the Austin chalk and Woodbine sand than in the softer Eagle Ford shale.

The relation of the deep Woodbine or “Morrow” pay at Currie is considered.

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