1. Kolibri Global Energy

International energy company Kolibri Global Energy aims to find and exploit projects centered on oil, gas and clean and sustainable energy. Its properties are located in the US, and the company operates them via its subsidiaries.

Last Thursday (March 31), the company issued an update on production at its Barnes 7-3H well in its Tishomingo field in Oklahoma, stating it is currently producing over 1,000 barrels of oil equivalent per day. Shares of Kolibri increased 43.75 percent last week to trade at C$0.23 by the end of the period.

2. Petrus Resources

Petrus Resources' exploration and exploitation activities are centered on Alberta, where it has a portfolio of oil and gas development assets. According to the energy-focused company, it operates in three main areas, which are Ferrier, Central Alberta and the Rocky Mountain foothills.

Last Monday (March 28), the company gave an activity update, reporting average estimated February production of 7,216 barrels of oil equivalent per day; its share price increased 24.51 percent to end the week at C$2.54.

3. Crew Energy

Natural gas producer Crew Energy's activities are primarily centered on the Montney resource in Northeast BC, Canada, where it has a large, contiguous land base of approximately 277,000 net acres (433 net sections).

Over the five day period, shares of Crew Energy increased 16 percent to end the week at C$4.93, although Crew Energy has not released any news since early March.

4. Bengal Energy

With a weighting toward light oil, explorer and producer Bengal Energy has producing and prospective onshore operations in Australia's Cooper Basin. Currently, the company produces mostly ultra-light, sweet crude oil.

Last Wednesday (March 30), the Calgary-based company published an independent oil and natural gas resource assessment. Bengal Energy saw its share price increase 14.29 percent over the five day period to hit C$0.12.

5. Erdene Resource Development

Erdene Resource Development has been exploring in Southwest Mongolia for the past decade, and discovered the Khundii Gold District. The company is considering two prospects for development: the Bayan Khundii and Altan Nar projects, both of which it wholly owns. Together, the two deposits comprise the Khundii gold project.

Last week, shares of Erdene Resources increased 14.29 percent and were trading at C$0.48 by the end of the week.