Petit-Val is a municipality in the Jura bernois administrative district in the canton of Bern in Switzerland.

[4] For most of the village's history, it belonged to the court and parish of Sornetan under the provost of Moutier-Grandval Abbey.

[5] For much of its history, Monible was part of the Amt or township of Sornetan under the provost of Moutier-Grandval Abbey who was under the Prince-Bishop of Basel.

When the Abbey was suppressed during the Protestant Reformation, Sornetan was placed under the provost of Moutier-Grandval who was under the Prince-Bishop of Basel.

The parish church was built in 1708-09 and today is a Swiss heritage site of national significance.

[6] While the village has remained generally agrarian, beginning in the 1970s the services sector began gaining importance.

One of the reasons for this change was the construction, in 1971, of a Swiss Reformed Church meeting and training center in the municipality.

[7] For most of Souboz's history, it was owned by the college of canons of Moutier-Grandval Abbey under the Prince-Bishop of Basel.

In the early 20th century, the municipality was close to bankruptcy and from 1926 until 1937 the mayor of Moutier took over running Souboz to get it out of debt.

[9] The historical population is given in the following chart:[10] The Forêts du Beucle, a medieval iron mine, and the Sornetan village reformed church are listed as Swiss heritage sites of national significance.

The entire villages of Châtelat and Souboz are designated as part of the Inventory of Swiss Heritage Sites.