SMC ▼ -0.0% - Summit Midstream Corporation $SMC XOM - Summit Midstream Corporation Announces Final Investment Decision on Double E Pipeline Mainline Compression Expansion Summit Midstream Corporation announced a final investment decision to move forward with a compression expansion project on the Double E Pipeline mainline. The stock was essentially flat today, suggesting investors are still assessing the implications of this capital project for the company's cash flows and returns. 31-AUG-2026 07:00 AM ET