William E. "Bill" Hopkins

Mary-Wommack Tatum is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Mary-Wommack practices law in Austin, Texas Best Lawyers has recognized Mary-Wommack Tatum since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mary-Wommack Tatum is held by other lawyers.

Casey Roy is a lawyer recognized by Best Lawyers in the practice areas of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. Casey practices law in Austin, Texas Best Lawyers has recognized Casey Roy since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Casey Roy is held by other lawyers.

Derek practices administrative and regulatory law with a focus on environmental permitting and enforcement. With more than 30 years of regulatory and legislative experience, Derek assists clients with a wide range of matters, including Texas Commission on Environmental Quality (TCEQ) contested case hearings and regulatory compliance, water supply and water rights, air, water, waste, and wastewater discharge permitting.Derek previously held roles as General Counsel of the TCEQ, Counsel to form...

Bill Moore represents numerous energy industry clients, counseling them on regulatory, business, litigation, and legislative matters. He has represented a variety of competitive and regulated electric companies, including Texas's largest power generation and mining company, its largest retail electricity providers, its largest municipal utility, several power generation facility investors, owners, and developers, and a large regulated electric utility. He handles clients' business-to-business...

David LeBas’ practice concentrates in the construction, agriculture, and banking industries. Mr. LeBas is Board Certified in Civil Trial Law. He handles commercial disputes, including trials, arbitrations and appeals, and transactions in his areas of concentration. Mr. LeBas is a recipient of the 2016 Excellence in Agricultural Law Award from the American Agricultural Law Association. He is a past president of the Amarillo Area Young Lawyers Association, a past director of the Texas You...

M. Craig Tyler is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Intellectual Property, Litigation - Patent and Patent Law. M. Craig practices law in Austin, Texas Best Lawyers has recognized M. Craig Tyler since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which M. Craig Tyler is held by other lawyers.

Steven M. Espenshade is a lawyer recognized by Best Lawyers in the practice areas of Copyright Law and Trademark Law. Steven M. practices law in Austin, Texas Best Lawyers has recognized Steven M. Espenshade since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Steven M. Espenshade is held by other lawyers.

Christopher D. Sileo is an attorney with Scott Douglass & McConnico LLP in Austin, Texas. His practice focuses on Commercial Litigation and Oil and Gas Law , representing both plaintiffs and defendants in complex legal matters in Texas and across the country. Chris handles a broad range of business disputes, including claims involving professional malpractice, class actions, oil and gas matters, and litigation involving the powers and decisions of state and local governments. He has repre...

Carroll Martin joined Scott Douglass & McConnico LLP in 1980, when the firm’s practice was focused on oil and gas litigation and regulatory matters. Based in Austin, Texas, she continues to concentrate her practice on Oil and Gas Law, representing clients in matters involving litigation, regulatory proceedings, transactional analysis, and mediation. Her practice includes the analysis and drafting of oil and gas instruments and agreements, environmental regulation related to explorat...

Darrell Windham is the managing member of the firm’s Austin office and has forty years of experience representing early stage companies, publicly traded and privately held clients, private equity funds and investors in complex mergers and acquisitions (M&A), strategic joint ventures, capital markets and other domestic and global business transactions. Darrell has experience in a wide variety of industries, including life sciences, medical devices, technology, software and semi-condu...