History
A seismic data company that grew by buying equipment and merging with Dawson in 2015, then came under Wilks Brothers control in 2022 and kept borrowing to re-equip.
2005-2009: Building up recording equipment
The story begins with the company then known as TGC Industries, which was cleared for listing on the American Stock Exchange in April 2005. Its early record is about buying seismic recording equipment, mostly with borrowed money. In June 2005 it financed a new ARAM ARIES recording system over 36 months at a fixed 7.25%, after a similar loan in October 2004.
In October 2005 it raised money from the public, signing an underwriting agreement to sell 5,500,000 new shares at $7.50 each, which would bring in $41.25 million before fees. It also agreed to buy back 3,516,645 warrants (rights to buy shares at a set price) from its six directors, but only if the offering completed. Around the same time 2,519,664 preferred shares were converted into common shares. More ARIES purchases followed: subsidiary Tidelands Geophysical agreed to pay about $4.1 million twice, and a $3,791,338 loan from General Electric Capital funded further equipment.
The record then goes quiet until October 2009, when the company bought Eagle Geophysical Canada out of bankruptcy for $10.3 million, giving it a Canadian operation for the first time in this record. In November 2007 the company was also certified for listing on Nasdaq.
2011-2015: The Dawson merger
In March 2011 the company agreed to be acquired by Dawson Geophysical, with each share converting into 0.188 Dawson shares if Dawson's price stayed in a set range. The US Department of Justice asked for more information in May, then closed its review without action in September. But by late October Dawson's average price had fallen to $27.23, below the range's lower bound of $32.54, and the two sides were negotiating changes. The record does not say how this ended, but a fresh deal followed in 2014, implying the first did not close.
On October 8, 2014 TGC signed a new agreement to combine with Dawson. TGC would do a 1-for-3 reverse split, Dawson holders would receive 1.760 TGC shares each, and TGC would take the Dawson name. Dawson holders were to own about 66% of the combined company. A Dawson shareholder filed a lawsuit in January 2015 seeking to block it, calling the registration documents misleading. The merger closed on February 11, 2015, with Stephen Jumper as chairman, president and CEO. The reverse split shows in the share count, which fell to 7,363,374 at the end of 2013 and rose to 21,580,865 by the end of 2015 as Dawson holders received shares. In June 2015 the company enlarged its Sovereign Bank credit line and took a $5,143,601.36 loan to repay Frost Bank.
2016-2021: A quiet stretch, then a Wilks offer
The record is quiet for several years. In September 2019 a Veritex credit line matured undrawn and was replaced by a Dominion Bank revolver of up to $15 million; the company also paid off its Veritex term loan with $4,355,665.
On October 25, 2021 the company agreed to be acquired by Wilks Brothers, LLC, through a tender offer (a direct offer to shareholders) at $2.34 cash per share. At that point 23,643,934 shares were outstanding. The board recommended accepting, and the deal was valued at about $50.8 million.
2022-2025: Wilks control and new equipment
In January 2022 the minimum acceptance level was cut from 80% to 66.67%. The offer expired on January 14 with 15,285,001 shares tendered, which with Wilks's existing 2,094,237 shares gave about 73.5%, and Wilks paid about $35.8 million. Jumper, Cooper and Klofas left the board, and Matt Wilks became chairman. A second-step merger, needing 80% approval at a March 15, 2022 meeting, would have bought out remaining holders at $2.34. Its outcome is not shown, but Dawson stayed listed and public, so it appears not to have completed.
In March 2023 Dawson bought Breckenridge Geophysical's seismic acquisition assets from Wilks Brothers, then holding about 74.46% of votes. It paid with 1,188,235 new shares and a $9,880,000.50 convertible note, which could turn into 5,811,765 shares at $1.70 once shareholders approve. A special committee of independent directors approved the deal, advised by Houlihan Lokey. Dawson also cut its Dominion revolver to $5 million.
In August 2025 Dawson agreed to buy Pioneer node channels (seismic recording equipment) from Geospace's subsidiary for about $24.2 million, delivered through early January 2026. About $4.8 million was paid in cash and about $18.2 million financed by three 36-month notes at 8.75%, secured partly on its Midland, Texas property. On October 31, 2025 it took a revolving loan of up to $5,035,032 at 13% from Equify Financial, a company controlled by Dan and Farris Wilks, approved by Dawson's audit committee. As of November 6, 2025, the Wilks-linked convertible note's share issuance awaited shareholder approval and the equipment deliveries were still under way.
Written from the 36 story beats below (2005 to 6 Nov 2025), which come from the company's own announcements and filings.