Buying Land in Natrona County, Wyoming

Wind and Solar Development: Real Projects, Both Approved and Denied

Natrona County regulates utility-scale wind and solar through its own Wind Energy Conversion System (WECS) and Utility Scale Solar System permit processes -- and it has both approved major projects (the 240-megawatt Dinosolar array near Bar Nunn) and denied one (a 2,010-acre, 199-megawatt solar-plus-battery project northwest of Casper, rejected 3-2 in February 2025 after resident opposition over fire response, drainage, and water-draw contamination). A separate 11-turbine wind farm north of Evansville was built but never operated, and is now being decommissioned under its own county permit terms. See our dedicated Natrona County wind and solar leasing page for the fees, setback figures, and both case studies in full.

Zoning Built Around Oil, Gas, and Ranching: The RAM District

Natrona County adopted a revised Zoning Resolution on December 20, 2022, updating its original 2000 code. The rural framework includes an A-1 Agricultural district with a 35-acre minimum lot size, a smaller Urban Agricultural (UA) district intended for 10-acre-or-larger lots used for agriculture and residential purposes closer to the urbanized area around Casper, and -- distinctively -- a Ranching, Agriculture, and Mining (RAM) district.

The RAM district is written specifically to provide for and protect land traditionally used for ranching, agriculture, and mining, and it explicitly names oil and gas production, forest and wildlife management, ranch recreation, and hunting camps as compatible uses alongside traditional ranching. That's a direct reflection of what Natrona County actually is -- a working oil county, not a code borrowed wholesale from a farm-state template. If a parcel is zoned RAM, understand that active or future oil and gas activity on land around you is a designed-for, not incidental, possibility.

Closer to Casper itself, the county's Urban Agricultural (UA) district sits at the other end of the density spectrum -- intended for lots of 10 acres or larger that combine agricultural and residential use in the more urbanized fringe around the city, rather than the working-ranch scale the RAM district anticipates farther out. Which of these districts actually applies to a given parcel depends heavily on proximity to Casper, so confirm the specific district before assuming either a large-acreage ranch character or a smaller suburban-agricultural one.

Split Estate and Legacy Wells: What a Century of Drilling Means for a Buyer Here

Natrona County sits in Wyoming's Wind River Basin, which has produced oil and gas for more than a century, and Casper itself grew up as an oil town in the early 1900s. Wyoming Oil and Gas Conservation Commission records show more than 3,500 wells drilled in the county from 1978 through early 2026 alone -- a figure that doesn't even capture the county's full drilling history going back further. Split mineral estates (where a landowner doesn't own the minerals beneath their own land) are common across Wyoming, and a county with this much legacy development is a genuine candidate to check carefully rather than assume about.

Before buying, pull the deed to see whether mineral rights are included, and check WOGCC well records for the specific parcel -- both for active wells (which may come with an existing surface use agreement governing access, compensation, and restoration) and for any plugged or abandoned wellbore on the property, which can carry its own liability and remediation questions. This is genuinely parcel-specific homework, not boilerplate caution.

Using the State's 35-Acre Subdivision Exemption Here

The Wyoming hub describes the state's 35-acre subdivision exemption in general terms; Natrona County has built its own clear procedure around applying it. The county maintains a dedicated Subdivision Exemptions process, including an Affidavit of Subdivision Exemption specifically for family-transfer exemptions under W.S. 18-5-303, alongside its own 2013 Subdivision Regulations covering land divisions that don't qualify for an exemption. Before assuming a division of land qualifies for an exemption, schedule an appointment with Natrona County Planning and Development to confirm -- the affidavit process is well-documented, but eligibility still depends on the specific facts of the parcel and its history.

Septic and Building Permits Are Real, Enforced Processes Here

Septic permitting in Natrona County runs through the Casper-Natrona County Health Department's Environmental Health Division, which holds delegated authority from Wyoming DEQ to permit, inspect, and enforce on-site wastewater systems handling less than 2,000 gallons of domestic sewage per day. On the construction side, Natrona County has adopted the 2018 International Residential Code and requires a building permit, site plan, and building plans before construction begins -- call the Development Department to confirm what's needed for your specific project before you start.