Which book dramatized conflicts over land between railroad companies?

You're likely thinking of "Blood Meridian" by Cormac McCarthy. While it's not explicitly about railroad companies, it explores the brutal frontier of the American West and the conflict over land, including the role of the railroad in expanding westward. The book features a group of Indian scalpers who work with the railroad to clear the land, and their actions are seen as a brutal reflection of the ruthless land grab taking place.

Here's why "Blood Meridian" fits the description:

* Violence and Conflict: The book is filled with graphic violence and explores the savagery of the American frontier, where land was often taken by force.

* Land Ownership: The book touches on the themes of ownership and control over land, especially as it pertains to westward expansion and the role of the railroad in facilitating it.

* Historical Context: Though fictional, the book draws inspiration from real historical events, capturing the brutal reality of westward expansion and the conflict over land ownership.

While not a direct focus on railroad companies, "Blood Meridian" provides a powerful, albeit dark, lens through which to view the consequences of westward expansion and the conflict over land that was fueled by the railroad.