{"@context":"https://schema.org","@type":"Dataset","name":"Borehole Drillers Indigenous in Port Harcourt, Nigeria: Ranked ordering","description":"Ranked's ordered list of borehole drillers indigenous in Port Harcourt, Rivers State, Nigeria, with the composite score behind every position. Ranking is computed from review data and is never for sale.","url":"https://ranked.ng/borehole-drillers-indigenous/port-harcourt","license":"https://ranked.ng/terms","creator":{"@type":"Organization","name":"Ranked","url":"https://ranked.ng"},"isAccessibleForFree":true,"distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://ranked.ng/dataset/rankings/borehole-drillers-indigenous/port-harcourt.json"}],"usage":{"citation":"Ranked (ranked.ng), Nigeria's directory of record","attributionUrl":"https://ranked.ng/borehole-drillers-indigenous/port-harcourt","methodology":"https://ranked.ng/how-we-rank","note":"Ranking position is editorial output computed from review data. Paid placement never affects position. The verified flag is granted only on evidence (owner phone-control proof, CAC registry match, or a hand-approved claim) and is never sold."},"spatialCoverage":{"@type":"City","name":"Port Harcourt, Rivers State, Nigeria"},"scoreModel":{"compositeRange":[0,100],"compositeDecimals":3,"breakdownPrecision":"exact","dimensions":["rating","volume","recency","completeness","sentiment","verification"],"weights":{"rating":0.38,"volume":0.24,"recency":0.13,"completeness":0.1,"sentiment":0.1,"verification":0.05},"weightsVersion":"2026-07-16","weightsEffectiveFrom":"2026-07-16","reproduce":"rankedScore = round(sum over `dimensions`, in that order, of scoreBreakdown[d] * weights[d], to `compositeDecimals` decimals). scoreBreakdown values are 0-100 and unrounded, so this reproduces the published rankedScore exactly. To recompute a place from scratch instead of re-summing it, apply the dimension formulas at https://ranked.ng/how-we-rank to `scoreInputs`, which holds the values read at `scoreComputedAt`, not the values on the listing today.","weightsHistory":[{"version":"2026-05-23","until":"2026-07-16","weights":{"rating":0.36,"volume":0.22,"recency":0.12,"completeness":0.1,"sentiment":0.1,"verification":0.05,"featured":0.05},"note":"Phase 1.5 weights. Paid placement (featured) carried 5% of the composite until it was removed on 16 July 2026 and redistributed to rating, volume and recency. Scores published before that date were computed with it."}],"note":"Weights sum to 1.0 and are applied identically to every business. Paid placement is not a dimension and never moves a position. A weights change is dated here before it is applied, because a change with no dated record would make every previously published score unreproducible with no way to tell that from an error."},"dateModified":"2026-09-04","totalRanked":14,"totalGoogleReviews":227,"returned":14,"reproducibility":{"rows":14,"reproducible":2,"note":"12 of 14 rows were scored before 7 September 2026 and carry a breakdown rounded to 2 decimals; each is flagged with scoreReproducible: false. They close on the next re-rank."},"places":[{"rank":1,"name":"Unitech Drilling Company Limited","url":"https://ranked.ng/place/unitech-drilling-company-limited-o5mvhy","rankedScore":65.101,"scoreBreakdown":{"rating":83.2,"volume":41.01,"recency":92.11,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.3,"googleReviewCount":17,"address":"HopeUp junction. Off Chief Davies Ikanya Drive, Off Location Road 3, Elelenwo, Rumudunwere, farm road, Elelenwo, Port Harcourt 500102, Rivers, Nigeria","phone":null,"website":"http://www.unitechenergies.com/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJg5itM2jNaRAR2_yeoO5mVHY"},"ownerVerified":false,"isFeatured":false},{"rank":2,"name":"Geoplex Drillteq Ltd","url":"https://ranked.ng/place/geoplex-drillteq-ltd-jd7sy8","rankedScore":65.05,"scoreBreakdown":{"rating":90.02,"volume":52.66,"recency":50.27,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.6,"googleReviewCount":37,"address":"Plot 85,Rivoc Road, Trans-Amadi Industrial Layout Rd, Trans Amadi, Port Harcourt 500272, Rivers, Nigeria","phone":"0803 796 9755","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJEYsQYszNaRAR39GkzjD7SY8"},"ownerVerified":false,"isFeatured":false},{"rank":3,"name":"Ramec Integrated Services Limited (RISL)","url":"https://ranked.ng/place/ramec-integrated-services-limited-risl-24voj4","rankedScore":63.052,"scoreBreakdown":{"rating":94.27,"volume":50.62,"recency":0.63,"completeness":100,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.9,"googleReviewCount":32,"address":"8A Amaji Street, GRA Phase 1, Port Harcourt 500272, Rivers, Nigeria","phone":"0814 932 5646","website":"http://www.ramecgroup.com/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJe4eW6ZDPaRARAt0Hm24voJ4"},"ownerVerified":false,"isFeatured":false},{"rank":4,"name":"Liscon Geotechnical Limited","url":"https://ranked.ng/place/liscon-geotechnical-limited-a7q_ka","rankedScore":62.547,"scoreBreakdown":{"rating":95.26,"volume":30.1,"recency":31.73,"completeness":100,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":5,"googleReviewCount":7,"address":"22 Egbelu-Ozodo, Ogbogoro Rd, Ogbogoro, Port Harcourt 500102, Rivers, Nigeria","phone":"0806 335 3196","website":"https://www.liscon.com.ng/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ6wfvgLgpaBARmKHZYA7Q_KA"},"ownerVerified":false,"isFeatured":false},{"rank":5,"name":"Well Fluid Services Limited","url":"https://ranked.ng/place/well-fluid-services-limited-sspldw","rankedScore":59.297,"scoreBreakdown":{"rating":83.2,"volume":41.01,"recency":47.46,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.3,"googleReviewCount":17,"address":"11 Tecon Energy Road, Off Oginigba-Elekahia Link Road, Trans Amadi, Port Harcourt 500102, Rivers, Nigeria","phone":"0817 961 0009","website":"http://wellfluidservices.com/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ3Tp-ELPNaRAR0IY_-SspLDw"},"ownerVerified":false,"isFeatured":false},{"rank":6,"name":"Oilchem Drilling Fluids Ltd","url":"https://ranked.ng/place/oilchem-drilling-fluids-ltd-dupbwy","rankedScore":56.081,"scoreBreakdown":{"rating":90.02,"volume":25.94,"recency":56.25,"completeness":33.33,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.6,"googleReviewCount":5,"address":"202 Trans-Amadi Industrial Layout Rd, Trans Amadi, Port Harcourt 500102, Rivers, Nigeria","phone":"84899929","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJkaB3ILDNaRARNmRh0duPBWY"},"ownerVerified":false,"isFeatured":false},{"rank":7,"name":"SEGOFS ENERGY SERVICES LIMITED","url":"https://ranked.ng/place/segofs-energy-services-limited-ly7zxm","rankedScore":51.336,"scoreBreakdown":{"rating":76.85,"volume":40.14,"recency":6.41,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4.1,"googleReviewCount":15,"address":"137 Industrial Layout, off, BG Technical Rd, Trans Amadi, Port Harcourt 500102, Rivers, Nigeria","phone":"02348 05 4862","website":"http://www.segofsenergy.com/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ79Wyb67NaRARPQfidLy7zXM"},"ownerVerified":false,"isFeatured":false},{"rank":8,"name":"Drillpet International Limited","url":"https://ranked.ng/place/drillpet-international-limited-ctpyyc","rankedScore":50.524,"scoreBreakdown":{"rating":73.11,"volume":46.01,"recency":0.27,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4,"googleReviewCount":23,"address":"Ordinance Rd, Rainbow Town, Port Harcourt 500101, Rivers, Nigeria","phone":"84464823","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ0aFkYETMaRARXhipNcTpyyc"},"ownerVerified":false,"isFeatured":false},{"rank":9,"name":"Niger Blossom Drilling Company Limited.","url":"https://ranked.ng/place/niger-blossom-drilling-company-limited-ako9s8","rankedScore":50.321,"scoreBreakdown":{"rating":95.26,"volume":10.03,"recency":0.37,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"sentimentScore":null,"differentiator":null,"googleRating":5,"googleReviewCount":1,"address":"Plot 41 Trans-Amadi Industrial Layout Rd, Rumuola, Port Harcourt 500102, Rivers, Nigeria","phone":"0803 316 2597","website":"http://nigerblossomdrilling.com/","identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJC9Cq2b3NaRARsVlRoAko9S8"},"ownerVerified":false,"isFeatured":false},{"rank":10,"name":"Lonestar Drilling Nig. Ltd","url":"https://ranked.ng/place/lonestar-drilling-nig-ltd-hsutti","rankedScore":49.226,"scoreBreakdown":{"rating":59.87,"volume":55.74,"recency":11.02,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":3.7,"googleReviewCount":47,"address":"Eneka/Igwuruta Road, Rumukwurushi, Port Harcourt, Rivers, Unnamed Road, Atali, Alingbu 500102, Rivers, Nigeria","phone":"0705 446 4347","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ8xaGuYjSaRARKksydHSutTI"},"ownerVerified":false,"isFeatured":false},{"rank":11,"name":"EMINAD NIGERIA LIMITED","url":"https://ranked.ng/place/eminad-nigeria-limited-lry4wq","rankedScore":46.548,"scoreBreakdown":{"rating":73.11,"volume":23.3,"recency":11.61,"completeness":66.67,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4,"googleReviewCount":4,"address":"by Artillery b/s, 52 Aba Rd, Rumuogba, Port Harcourt 500101, Rivers, Nigeria","phone":"0803 309 4099","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJQUTT9prNaRARGOuw3lry4wQ"},"ownerVerified":false,"isFeatured":false},{"rank":12,"name":"Deutag Nig Ltd Drilling Services","url":"https://ranked.ng/place/deutag-nig-ltd-drilling-services-xkd7n0","rankedScore":46.026,"scoreBreakdown":{"rating":73.11,"volume":41.01,"recency":0.53,"completeness":33.33,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"sentimentScore":null,"differentiator":null,"googleRating":4,"googleReviewCount":16,"address":"R2MM+RH2, Km 16, Rumuola, Port Harcourt 500102, Rivers, Nigeria","phone":null,"website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJ3X004yPNaRARv28MSxKd7N0"},"ownerVerified":false,"isFeatured":false},{"rank":13,"name":"Specialty Drilling Fluids Ltd","url":"https://ranked.ng/place/specialty-drilling-fluids-ltd-cs8sac","rankedScore":41.457,"scoreBreakdown":{"rating":73.11,"volume":23.3,"recency":23.73,"completeness":0,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":4,"googleReviewCount":4,"address":"Plot 18C Trans-Amadi Industrial Layout Rd, Rumuola, Port Harcourt 500102, Rivers, Nigeria","phone":null,"website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJN-lB1r_NaRARon7NvCs8sAc"},"ownerVerified":false,"isFeatured":false},{"rank":14,"name":"Drilling Fluids & Chemical Industry Ltd","url":"https://ranked.ng/place/drilling-fluids-and-chemical-industry-ltd-a7jswy","rankedScore":22.407,"scoreBreakdown":{"rating":26.89,"volume":15.9,"recency":0.29,"completeness":33.33,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-03T22:55:34.188Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. Its breakdown was stored rounded to 2 decimals, so re-summing it lands within about 0.005 of rankedScore rather than exactly on it. The row is republished as it was computed and closes on the next re-rank.","sentimentScore":null,"differentiator":null,"googleRating":3,"googleReviewCount":2,"address":"11 Alex wele Close, Mgbuosimiri, Port Harcourt 500101, Rivers, Nigeria","phone":"0814 913 5653","website":null,"identifiers":{"cacRcNumber":null,"googlePlaceId":"ChIJj5UgoPHOaRAR-cw-bA7JSWY"},"ownerVerified":false,"isFeatured":false}]}