Codell
Sandstone

The Codell Sandstone is a Late Cretaceous tight sandstone in the DJ Basin of northeastern Colorado, best known as the principal secondary target beneath the Niobrara in the Wattenberg Field. It is developed across Weld County and extends north into Laramie County, Wyoming, and it is one of the two formation names most DJ Basin mineral owners see on their wells.

Therocks beneath your minerals.

The Codell is a fine-grained sandstone member of the Carlile Shale, deposited in a Cretaceous sea and now a tight reservoir productive through horizontal drilling. It sits directly below the Niobrara, and the two are the DJ Basin’s primary stacked targets.

In the Wattenberg area the Codell commonly falls between roughly 6,500 and 7,500 feet, shallower than the deep-basin plays of the Anadarko or Powder River. Its quality varies across the field, which is why operators design development around local conditions.

Because the Codell and Niobrara are stacked closely together, a single tract is frequently developed in both, with wells completed in each formation from a shared surface location.

Where theproduction lives.

Codell development tracks the broader Wattenberg program, where it is most often drilled together with the Niobrara. Chevron and Occidental are among the operators active across the DJ Basin, alongside others whose positions have changed through recent consolidation.

Codell wells produce a liquids-rich mix of oil and natural gas typical of the Wattenberg. Development in Colorado is governed by the Energy and Carbon Management Commission, which handles spacing and the pooling process that assembles a drilling unit, under the state framework that now emphasizes public health and safety.

The current operator and completed formation on any specific well can be confirmed through the Commission’s public well records.

Mineral rights in theCodell.

Mineral owners in the DJ Basin commonly see Codell wells on their tracts alongside Niobrara wells in the same area. Because the two are so often co-developed, a single tract can carry producing interests in both formations, each generating royalty income on its own decimal.

For inheritors with Weld County or DJ Basin minerals, knowing whether your wells are completed in the Codell or the Niobrara helps explain what you are receiving and why one tract can show more than one producing interest.

Lease terms and pooling elections across Colorado vary by vintage and by tract, and that language can affect net royalty income beyond what the well data alone would suggest. We are happy to walk through what your specific situation looks like alongside the public well records, on a call or by email.